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The public domain (PD) consists of all the
creative work A creative work is a manifestation of creative effort in the world through a ''creative process'' involving one or more individuals. The term includes fine artwork (sculpture, paintings, drawing, sketching, performance art), dance, writing (li ...
to which no exclusive
intellectual property Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, co ...
rights apply. Those rights may have expired, been forfeited, expressly
waived A waiver is the voluntary relinquishment or surrender of some known right or privilege. A waiver is often written, such as a disclaimer that has been accepted, but it may also be spoken between two or more parties. When the right to hold a p ...
, or may be inapplicable. Because no one holds the exclusive rights, anyone can legally use or reference those works without permission. As examples, the works of
William Shakespeare William Shakespeare ( 23 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's nation ...
,
Ludwig van Beethoven Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. He is one of the most revered figures in the history of Western music; his works rank among the most performed of the classical music repertoire ...
,
Miguel de Cervantes Miguel de Cervantes Saavedra ( ; ; 29 September 1547 (assumed) – 22 April 1616 Old Style and New Style dates, NS) was a Spanish writer widely regarded as the greatest writer in the Spanish language and one of the world's pre-eminent novelist ...
,
Zoroaster Zarathushtra Spitama, more commonly known as Zoroaster or Zarathustra, was an Iranian peoples, Iranian religious reformer who challenged the tenets of the contemporary Ancient Iranian religion, becoming the spiritual founder of Zoroastrianism ...
, Lao Zi,
Confucius Confucius (; pinyin: ; ; ), born Kong Qiu (), was a Chinese philosopher of the Spring and Autumn period who is traditionally considered the paragon of Chinese sages. Much of the shared cultural heritage of the Sinosphere originates in the phil ...
,
Aristotle Aristotle (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, a ...
,
L. Frank Baum Lyman Frank Baum (; May 15, 1856 – May 6, 1919) was an American author best known for his children's fantasy books, particularly '' The Wonderful Wizard of Oz'', part of a series. In addition to the 14 ''Oz'' books, Baum penned 41 other novels ...
,
Leonardo da Vinci Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...
and
Georges Méliès Marie-Georges-Jean Méliès ( , ; 8 December 1861 – 21 January 1938) was a French magic (illusion), magician, toymaker, actor, and filmmaker. He led many technical and narrative developments in the early days of film, cinema, primarily in th ...
are in the public domain either by virtue of their having been created before
copyright A copyright is a type of intellectual property that gives its owner the exclusive legal right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, ...
existed, or by their copyright term having expired. Some works are not covered by a country's copyright laws, and are therefore in the public domain; for example, in the United States, items excluded from copyright include the formulae of
Newtonian physics Classical mechanics is a physical theory describing the motion of objects such as projectiles, parts of machinery, spacecraft, planets, stars, and galaxies. The development of classical mechanics involved substantial change in the methods ...
and cooking recipes. Other works are actively dedicated by their authors to the public domain (see
waiver A waiver is the voluntary relinquishment or surrender of some known right or privilege. A waiver is often written, such as a disclaimer that has been accepted, but it may also be spoken between two or more parties. When the right to hold a ...
); examples include reference implementations of cryptographic algorithms. The term ''public domain'' is not normally applied to situations where the creator of a work retains residual rights, in which case use of the work is referred to as "under license" or "with permission". As rights vary by country and jurisdiction, a work may be subject to rights in one country and be in the public domain in another. Some rights depend on registrations on a country-by-country basis, and the absence of registration in a particular country, if required, gives rise to public-domain status for a work in that country. The term ''public domain'' may also be interchangeably used with other imprecise or undefined terms such as the ''
public sphere The public sphere () is an area in social relation, social life where individuals can come together to freely discuss and identify societal problems, and through that discussion, Social influence, influence political action. A "Public" is "of or c ...
'' or ''
commons The commons is the cultural and natural resources accessible to all members of a society, including natural materials such as air, water, and a habitable Earth. These resources are held in common even when owned privately or publicly. Commons ...
'', including concepts such as the "commons of the mind", the "intellectual commons", and the "information commons".


History

Although the term ''domain'' did not come into use until the mid-18th century, the concept can be traced back to the ancient
Roman law Roman law is the law, legal system of ancient Rome, including the legal developments spanning over a thousand years of jurisprudence, from the Twelve Tables (), to the (AD 529) ordered by Eastern Roman emperor Justinian I. Roman law also den ...
, "as a preset system included in the property right system". The Romans had a large proprietary rights system where they defined "many things that cannot be privately owned" as ''
res nullius ''Res nullius'' is a term of Roman law meaning "things belonging to no one"; that is, property not yet the object of rights of any specific subject. A person can assume ownership of ''res nullius'' simply by taking possession of it ''( occupatio ...
'', '' res communes'', ''
res publica ', also spelled ''rēs pūblica'' to indicate vowel length, is a Latin phrase, loosely meaning "public affair". It is the root of the ''republic'', and '' commonwealth'' has traditionally been used as a synonym for it; however, translations var ...
e'' and ''res universitatis''. The term ''res nullius'' was defined as things not yet appropriated. The term ''res communes'' was defined as "things that could be commonly enjoyed by mankind, such as air, sunlight and ocean." The term ''res publicae'' referred to things that were shared by all citizens, and the term ''res universitatis'' meant things that were owned by the municipalities of Rome. When looking at it from a historical perspective, one could say the construction of the idea of "public domain" sprouted from the concepts of ''res communes'', ''res publicae'', and ''res universitatis'' in early Roman law. When the first early copyright law was originally established in Britain with the
Statute of Anne The Statute of Anne, also known as the Copyright Act 1709 or the Copyright Act 1710 (cited either as 8 Ann. c. 21 or as 8 Ann. c. 19), was an act of the Parliament of Great Britain passed in 1710, which was the first statute to provide for ...
in 1710, public domain did not appear. However, similar concepts were developed by British and French jurists in the 18th century. Instead of "public domain", they used terms such as or ''propriété publique'' to describe works that were not covered by copyright law. The phrase "fall in the public domain" can be traced to mid-19th-century France to describe the end of
copyright term The copyright term is the length of time copyright subsists in a work before it passes into the public domain. In most of the world, this length of time is the life of the author plus either 50 or 70 years https://w.wiki/ETPJ. Length of copyright ...
. The French poet
Alfred de Vigny Alfred Victor, Comte de Vigny (; 27 March 1797 – 17 September 1863) was a French poet and early French Romanticism, Romanticist. He also produced novels, plays, and translations of Shakespeare. Biography Vigny was born in Loches (a town to wh ...
equated the expiration of copyright with a work falling "into the sink hole of public domain" and if the public domain receives any attention from intellectual property lawyers it is still treated as little more than that which is left when intellectual property rights, such as
copyright A copyright is a type of intellectual property that gives its owner the exclusive legal right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, ...
,
patents A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...
, and
trademarks A trademark (also written trade mark or trade-mark) is a form of intellectual property that consists of a word, phrase, symbol, design, or a combination that identifies a product or service from a particular source and distinguishes it from ot ...
, expire or are abandoned. In this historical context Paul Torremans describes copyright as a "little coral reef of private right jutting up from the ocean of the public domain". Copyright law differs by country, and the American legal scholar
Pamela Samuelson Pamela Samuelson (born August 4, 1948) is an American legal scholar, activist, and philanthropist. She is the Richard M. Sherman '74 Distinguished Professor of Law at the University of California, Berkeley, School of Law, where she has been a mem ...
has described the public domain as being "different sizes at different times in different countries".


Definition

Definitions of the boundaries of the public domain in relation to copyright, or intellectual property more generally, regard the public domain as a negative space; that is, it consists of works that are no longer in copyright term or were never protected by copyright law. According to James Boyle this definition underlines common usage of the term ''public domain'' and equates the public domain to
public property Public property is property that is dedicated to public use. The term may be used either to describe the use to which the property is put, or to describe the character of its ownership (owned collectively by the population of a state). State own ...
and works in copyright to
private property Private property is a legal designation for the ownership of property by non-governmental Capacity (law), legal entities. Private property is distinguishable from public property, which is owned by a state entity, and from Collective ownership ...
. However, the usage of the term ''public domain'' can be more granular, including for example uses of works in copyright permitted by
copyright exceptions Limitations and exceptions to copyright are provisions, in local copyright law or the Berne Convention, which allow for copyrighted works to be used without a license from the copyright owner. Limitations and exceptions to copyright relate to a ...
. Such a definition regards work in copyright as private property subject to
fair use Fair use is a Legal doctrine, doctrine in United States law that permits limited use of copyrighted material without having to first acquire permission from the copyright holder. Fair use is one of the limitations to copyright intended to bal ...
rights and limitation on ownership. A conceptual definition comes from Lange, who focused on what the public domain should be: "it should be a place of sanctuary for individual creative expression, a sanctuary conferring affirmative protection against the forces of private appropriation that threatened such expression". Patterson and Lindberg described the public domain not as a "territory", but rather as a concept: " ere are certain materials – the air we breathe, sunlight, rain, space, life, creations, thoughts, feelings, ideas, words, numbers – not subject to private ownership. The materials that compose our cultural heritage must be free for all living to use no less than matter necessary for biological survival." The term ''public domain'' may also be interchangeably used with other imprecise or undefined terms such as the ''
public sphere The public sphere () is an area in social relation, social life where individuals can come together to freely discuss and identify societal problems, and through that discussion, Social influence, influence political action. A "Public" is "of or c ...
'' or ''
commons The commons is the cultural and natural resources accessible to all members of a society, including natural materials such as air, water, and a habitable Earth. These resources are held in common even when owned privately or publicly. Commons ...
'', including concepts such as the "commons of the mind", the "intellectual commons", and the "information commons".


Public domain by medium


Books

A public-domain book is a book with no copyright, a book that was created without a license, or a book where its copyrights expired or have been forfeited. In most countries the term of protection of copyright expires on the first day of January, 70 years after the death of the latest living author. The longest copyright term is in Mexico, which has life plus 100 years for all deaths since July 1928. A notable exception is the United States, where every book and tale published before is in the public domain; US copyrights last for 95 years for books originally published between and 1978 if the copyright was properly registered and maintained. For example: the works of
Jane Austen Jane Austen ( ; 16 December 1775 – 18 July 1817) was an English novelist known primarily for #List of works, her six novels, which implicitly interpret, critique, and comment on the English landed gentry at the end of the 18th century ...
,
Lewis Carroll Charles Lutwidge Dodgson (27 January 1832 – 14 January 1898), better known by his pen name Lewis Carroll, was an English author, poet, mathematician, photographer and reluctant Anglicanism, Anglican deacon. His most notable works are ''Alice ...
,
Machado de Assis Joaquim Maria Machado de Assis (), often known by his surnames as Machado de Assis, ''Machado,'' or ''Bruxo do Cosme Velho''Vainfas, p. 505. (21 June 1839 – 29 September 1908), was a pioneer Brazilian people, Brazilian novelist, poet, playwr ...
,
Olavo Bilac Olavo Brás Martins dos Guimarães Bilac (16 December 1865 – 28 December 1918), known simply as Olavo Bilac (), was a Brazilian Parnassian poet, journalist and translator. Alongside Alberto de Oliveira and Raimundo Correia, he was a member ...
and
Edgar Allan Poe Edgar Allan Poe (; January 19, 1809 – October 7, 1849) was an American writer, poet, editor, and literary critic who is best known for his poetry and short stories, particularly his tales involving mystery and the macabre. He is widely re ...
are in the public domain worldwide as they all died over 100 years ago.
Project Gutenberg Project Gutenberg (PG) is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks." It was founded in 1971 by American writer Michael S. Hart and is the oldest digital li ...
, the
Internet Archive The Internet Archive is an American 501(c)(3) organization, non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including web ...
and
Wikisource Wikisource is an online wiki-based digital library of free-content source text, textual sources operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole; it is also the name for each instance of that project, one f ...
make tens of thousands of public domain books available online as
ebook An ebook (short for electronic book), also spelled as e-book or eBook, is a book publication made available in electronic form, consisting of text, images, or both, readable on the flat-panel display of computers or other electronic devices. A ...
s.


Music

People have been creating music for millennia. The first
musical notation Musical notation is any system used to visually represent music. Systems of notation generally represent the elements of a piece of music that are considered important for its performance in the context of a given musical tradition. The proce ...
system, the Music of Mesopotamia system, was created 4,000 years ago.
Guido of Arezzo Guido of Arezzo (; – after 1033) was an Italian music theorist and pedagogue of High medieval music. A Benedictine monk, he is regarded as the inventor—or by some, developer—of the modern Staff (music), staff notation that had a massive ...
introduced Latin musical notation in the 10th century. This laid the foundation for the preservation of global music in the public domain, a distinction formalized alongside copyright systems in the 17th century. Musicians copyrighted their publications of musical notation as literary writings, but performing copyrighted pieces and creating derivative works were not restricted by early copyright laws. Copying was widespread, in compliance with the law, but expansions of those laws intended to benefit literary works and responding to commercial music recording technology's reproducibility have led to stricter rules. Relatively recently, a normative view that copying in music is not desirable and lazy has become popular among professional musicians. US copyright laws distinguish between musical compositions and sound recordings, the former of which refers to melody, notation or lyrics created by a composer or lyricist, including sheet music, and the latter referring to a recording performed by an artist, including a CD, LP, or digital sound file. Musical compositions fall under the same general rules as other works, and anything published before 1925 is considered public domain. Sound recordings, on the other hand, are subject to different rules and are not eligible for public domain status until 2021–2067, depending on the date and location of publishing, unless explicitly released beforehand. The
Musopen Musopen is an organization which creates, produces and disseminates Western classical music, via public domain recordings, sheet music and educational resources. It stands with the ChoralWiki and the Wind Repertory Project as among the most prom ...
project records music in the public domain for the purposes of making the music available to the general public in a high-quality audio format. Online musical archives preserve collections of classical music recorded by Musopen and offer them for download/distribution as a public service.


Films

A public-domain film is a film that was never under copyright, was released to public domain by its author, or whose
copyright A copyright is a type of intellectual property that gives its owner the exclusive legal right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, ...
has expired. All films released in the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
before 1 January 1930 have been entered in the public domain in that country.


Value

Pamela Samuelson has identified eight "values" that can arise from information and works in the public domain. Possible values include: # Building blocks for the creation of new knowledge, examples include data, facts, ideas, theories, and scientific principle. # Access to cultural heritage through information resources such as ancient Greek texts and Mozart's symphonies. # Promoting education, through the spread of information, ideas, and scientific principles. # Enabling follow-on innovation, through for example expired patents and copyright. # Enabling low cost access to information without the need to locate the owner or negotiate rights clearance and pay royalties, through for example expired copyrighted works or patents, and non-original data compilation. # Promoting public health and safety, through information and scientific principles. # Promoting the democratic process and values, through news, laws, regulation, and judicial opinion. # Enabling competitive imitation, through for example expired patents and copyright, or publicly disclosed technologies that do not qualify for patent protection.


Relationship with derivative works

Derivative works include
translation Translation is the communication of the semantics, meaning of a #Source and target languages, source-language text by means of an Dynamic and formal equivalence, equivalent #Source and target languages, target-language text. The English la ...
s,
musical arrangements In music, an arrangement is a musical adaptation of an existing Composition (music), composition. Differences from the original composition may include Harmony (music), reharmonization, Musical phrasing, melodic paraphrasing, orchestration, or M ...
, and dramatizations of a work, as well as other forms of transformation or adaptation. Copyrighted works may not be used for derivative works without permission from the copyright owner, while public domain works can be freely used for derivative works without permission. Artworks that are public domain may also be reproduced photographically or artistically or used as the basis of new, interpretive works. Works derived from public domain works can be copyrighted. Once works enter into the public domain, derivative works such as adaptations in book and film may increase noticeably, as happened with
Frances Hodgson Burnett Frances Eliza Hodgson Burnett (24 November 1849 – 29 October 1924) was a British-American novelist and playwright. She is best known for the three children's novels ''Little Lord Fauntleroy'' (1886), ''A Little Princess'' (1905), a ...
's novel ''
The Secret Garden ''The Secret Garden'' is a children's novel by Frances Hodgson Burnett first published in book form in 1911, after serialisation in ''The American Magazine'' (November 1910 – August 1911). Set in England, it is seen as a classic of English c ...
'', which became public domain in the US in 1977 and most of the rest of the world in 1995. By 1999, the plays of Shakespeare, all public domain, had been used in more than 420 feature-length films. In addition to straightforward adaptation, they have been used as the launching point for transformative retellings such as
Tom Stoppard Sir Tom Stoppard (; born , 3 July 1937) is a Czech-born British playwright and screenwriter. He has written for film, radio, stage, and television, finding prominence with plays. His work covers the themes of human rights, censorship, and politi ...
's ''
Rosencrantz and Guildenstern Are Dead ''Rosencrantz and Guildenstern Are Dead'' is an absurdist, existential tragicomedy by Tom Stoppard, first staged at the Edinburgh Festival Fringe in 1966. The play expands upon the exploits of two minor characters from Shakespeare's ''Hamle ...
'' and
Troma Entertainment Troma Entertainment is an American independent film production company, production and film distributor, distribution company founded by Lloyd Kaufman and Michael Herz (producer), Michael Herz in 1974. They are the longest running independent film ...
's ''
Tromeo and Juliet ''Tromeo and Juliet'' is a 1996 American independent transgressive romantic black comedy film and a loose adaptation of William Shakespeare's '' Romeo & Juliet'' from Troma Entertainment. The film was directed by Lloyd Kaufman from a screenp ...
''. Marcel Duchamp's '' L.H.O.O.Q.'' is a derivative of Leonardo da Vinci's ''
Mona Lisa The ''Mona Lisa'' is a half-length portrait painting by the Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, ...
'', one of thousands of derivative works based on the public domain painting. The 2018 film '' A Star is Born'' is a remake of the 1937 film of the same name, which is in the public domain due to an unrenewed copyright.


Rights in public domain reproduction

Courts in different jurisdictions have come to different conclusions as to whether the reproduction of a public domain work gains its own rights protection, or whether it too is in the public domain. In a German 2016 case, the Reiss-Engelhorn-Museen, an art museum, sued
Wikimedia Commons Wikimedia Commons, or simply Commons, is a wiki-based Digital library, media repository of Open content, free-to-use images, sounds, videos and other media. It is a project of the Wikimedia Foundation. Files from Wikimedia Commons can be used ...
over photographs uploaded to the database depicting pieces of art in the museum. The museum claimed that the photos were taken by their staff, and that photography within the museum by visitors was prohibited. Therefore, photos taken by the museum, even of material that itself had fallen into the public domain, were protected by copyright law and would need to be removed from the Wikimedia image repository. The court ruled that the photographs taken by the museum would be protected under the German Copyright Act, stating that since the photographer needed to make practical decisions about the photograph that it was protected material. In contrast, in the 1999 US case '' Bridgeman Art Library v. Corel Corp.'', the court ruled that exact photographic copies of public domain images could not be protected by copyright in the United States because the copies lack
originality Originality is the aspect of created or invented works that distinguish them from reproductions, clones, forgeries, or substantially derivative works. The modern idea of originality is according to some scholars tied to Romanticism, by a notion ...
.


Perpetual copyright

In some countries, certain works may never fully lapse into the public domain. In the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
, for example, there is a perpetual
crown copyright Crown copyright is a type of copyright protection. It subsists in works of the governments of some Commonwealth realms and provides special copyright rules for the Crown, i.e. government departments and (generally) state entities.Judge, E. F. (201 ...
for the
Authorized King James Version The King James Version (KJV), also the King James Bible (KJB) and the Authorized Version (AV), is an Early Modern English translation of the Christian Bible for the Church of England, which was commissioned in 1604 and published in 1611, by ...
of the
Bible The Bible is a collection of religious texts that are central to Christianity and Judaism, and esteemed in other Abrahamic religions such as Islam. The Bible is an anthology (a compilation of texts of a variety of forms) originally writt ...
. While the copyright has expired for the Peter Pan works by
J. M. Barrie Sir James Matthew Barrie, 1st Baronet, (; 9 May 1860 19 June 1937) was a Scottish novelist and playwright, best remembered as the creator of Peter Pan. He was born and educated in Scotland and then moved to London, where he wrote several succe ...
(the play ''
Peter Pan, or the Boy Who Wouldn't Grow Up ''Peter Pan; or, the Boy Who Wouldn't Grow Up'', often known simply as ''Peter Pan'', is a work by J. M. Barrie, in the form of a 1904 play and a 1911 novel titled ''Peter and Wendy''. Both versions tell the story of Peter Pan, a mischievou ...
'' and the novel ''
Peter and Wendy ''Peter Pan; or, the Boy Who Wouldn't Grow Up'', often known simply as ''Peter Pan'', is a work by J. M. Barrie, in the form of a 1904 play and a 1911 novel titled ''Peter and Wendy''. Both versions tell the story of Peter Pan, a mischievous ...
'') in the United Kingdom, it was granted a special exception under the
Copyright, Designs and Patents Act 1988 The Copyright, Designs and Patents Act 1988 (c. 48), also known as the CDPA, is an Act of Parliament, Act of the Parliament of the United Kingdom that received royal assent on 15 November 1988. It reformulates almost completely the statutory ba ...
(Schedule 6) that requires royalties to be paid for commercial performances, publications and broadcasts of the story of Peter Pan within the UK, as long as
Great Ormond Street Hospital Great Ormond Street Hospital (informally GOSH, formerly the Hospital for Sick Children) is a children's hospital located in the Bloomsbury area of the London Borough of Camden, and a part of Great Ormond Street Hospital for Children NHS F ...
(to whom Barrie gave the copyright) continues to exist. In a paying public domain regime, works that have entered the public domain after their copyright has expired, or
traditional knowledge Traditional knowledge (TK), indigenous knowledge (IK), folk knowledge, and local knowledge generally refers to knowledge systems embedded in the cultural traditions of regional, indigenous, or local communities. Traditional knowledge includes ...
and
traditional cultural expressions Cultural expressions are creative manifestations of the cultural identities of their authors. They are treated in the international legal system in terms of cultural rights, intellectual property law and international trade. Definition The ob ...
that have never been subject to copyright, are still subject to royalties payable to the state or to an authors' association. The user does not have to seek permission to copy, present or perform the work, but does have to pay the fee. Typically the royalties are directed to support of living artists.


Public domain mark

In 2010, The
Creative Commons Creative Commons (CC) is an American non-profit organization and international network devoted to educational access and expanding the range of creative works available for others to build upon legally and to share. The organization has release ...
proposed the Public Domain Mark (PDM) as
symbol A symbol is a mark, Sign (semiotics), sign, or word that indicates, signifies, or is understood as representing an idea, physical object, object, or wikt:relationship, relationship. Symbols allow people to go beyond what is known or seen by cr ...
to indicate that a work is free of known
copyright A copyright is a type of intellectual property that gives its owner the exclusive legal right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, ...
restrictions and therefore in the public domain. The public domain mark is a combination of the
copyright symbol The copyright symbol, or copyright sign, (a circled capital letter C for copyright), is the symbol used in copyright notices for works other than sound recordings. 17 U.S.C. The use of the symbol is described by the Universal Copyright Conv ...
, which acts as
copyright notice In the copyright law of the United States, United States copyright law, a copyright notice is a notice of statutorily prescribed form that informs users of the underlying claim to copyright ownership in a published work. Copyright is a form ...
, with the international 'no' symbol. The
Europeana Europeana is a web portal created by the European Union containing digitised cultural heritage collections of more than 3,000 institutions across Europe. It includes records of over 50 million cultural and scientific artefacts, brought togethe ...
databases use it, and for instance on the
Wikimedia Commons Wikimedia Commons, or simply Commons, is a wiki-based Digital library, media repository of Open content, free-to-use images, sounds, videos and other media. It is a project of the Wikimedia Foundation. Files from Wikimedia Commons can be used ...
in February 2016 2.9 million works (~10% of all works) are listed with the mark.


Application to copyrightable works


Works not covered by copyright law

The underlying idea that is expressed or manifested in the creation of a work generally cannot be the subject of copyright law (see idea–expression divide). Mathematical formulae will therefore generally form part of the public domain, to the extent that their expression in the form of software is not covered by copyright. Works created before the existence of copyright and patent laws also form part of the public domain. For example,
the Bible The Bible is a collection of religious texts that are central to Christianity and Judaism, and esteemed in other Abrahamic religions such as Islam. The Bible is an anthology (a compilation of texts of a variety of forms) originally writte ...
and the inventions of
Archimedes Archimedes of Syracuse ( ; ) was an Ancient Greece, Ancient Greek Greek mathematics, mathematician, physicist, engineer, astronomer, and Invention, inventor from the ancient city of Syracuse, Sicily, Syracuse in History of Greek and Hellenis ...
are in the public domain. However, translations or new formulations of these works may be copyrighted in themselves.


Expiration of copyright

Determination of whether a copyright has expired depends on an examination of the copyright in its source country. In most countries that are signatories to the Berne Convention, copyright term is based on the life of the author, and extends to 50 or 70 years beyond the death of the author. (See List of copyright terms of countries.) In the United States, determining whether a work has entered the public domain or is still under copyright depends upon what the law or regulation was at creation, and whether new regulations have grandfathered in certain older works. Because
copyright term The copyright term is the length of time copyright subsists in a work before it passes into the public domain. In most of the world, this length of time is the life of the author plus either 50 or 70 years https://w.wiki/ETPJ. Length of copyright ...
s shifted over the course of the 20th century from a fixed-term based on first publication, with a possible renewal term, to a term extending to 50, then 70, years after the death of the author. The claim that "pre- works are in the public domain" is correct only for published works; unpublished works are under federal copyright for at least the life of the author plus 70 years. Legal traditions differ on whether a work in the public domain can have its copyright restored. In the European Union, the
Copyright Duration Directive Council Directive 93/98/EEC of 29 October 1993 harmonising the term of protection of copyright and certain related rights is a European Union directive in the field of EU copyright law, made under the internal market provisions of the Treaty ...
was applied retroactively, restoring and extending the terms of copyright on material previously in the public domain. Term extensions by the US and Australia generally have not removed works from the public domain, but rather delayed the addition of works to it. However, the United States moved away from that tradition with the Uruguay Round Agreements Act, which removed from the public domain many foreign-sourced works that had previously not been in copyright in the US for failure to comply with US-based formalities requirements. Consequently, in the US, foreign-sourced works and US-sourced works are now treated differently, with foreign-sourced works remaining under copyright regardless of compliance with formalities, while domestically sourced works may be in the public domain if they failed to comply with then-existing formalities requirements—a situation described as odd by some scholars, and unfair by some US-based rightsholders.


Government works

Works of various governments around the world may be excluded from copyright law and may therefore be considered to be in the public domain in their respective countries. They may also be in the public domain in other countries as well. Material in the public domain is still considered so when included as part of larger copyrighted creations. In the United States, work created by the federal government is not subject to copyright law, placing it within the public domain. However, the government may own and use copyrighted materials that were not initially created by them. Alternatively, materials created by the United Kingdom's government are not automatically in public domain but instead placed under the
Open Government Licence The Open Government Licence (OGL) is a Public copyright license, copyright licence for crown copyright works published by the UK government. Other UK public sector bodies may apply it to their publications. It was developed and is maintained by T ...
. The status of government creations vary depending on the country they are in.


Dedicating works to the public domain


Release without copyright notice

Before 1 March 1989, in the US, works could be easily given into the public domain by just releasing it without an explicit
copyright notice In the copyright law of the United States, United States copyright law, a copyright notice is a notice of statutorily prescribed form that informs users of the underlying claim to copyright ownership in a published work. Copyright is a form ...
. With the Berne Convention Implementation Act of 1988 (and the earlier
Copyright Act of 1976 The Copyright Act of 1976 is a United States copyright law and remains the primary basis of copyright law in the United States, as amended by several later enacted copyright provisions. The Act spells out the basic rights of copyright holders, ...
, which went into effect in 1978), all works were by default copyright protected and needed to be actively given into public domain by a
waiver A waiver is the voluntary relinquishment or surrender of some known right or privilege. A waiver is often written, such as a disclaimer that has been accepted, but it may also be spoken between two or more parties. When the right to hold a ...
statement/ anti-copyright can call notice. Not all legal systems have processes for reliably donating works to the public domain, e.g. civil law of
continental Europe Continental Europe or mainland Europe is the contiguous mainland of Europe, excluding its surrounding islands. It can also be referred to ambiguously as the European continent, – which can conversely mean the whole of Europe – and, by som ...
. This may even "effectively prohibit any attempt by copyright owners to surrender rights automatically conferred by law, particularly
moral rights Moral rights are rights of creators of copyrighted works generally recognized in civil law jurisdictions and, to a lesser extent, in some common law jurisdictions. The moral rights include the right of attribution, the right to have a work p ...
".


Public-domain-like licenses

An alternative is for copyright holders to issue a license which irrevocably grants as many rights as possible to the general public. Real public domain makes
license A license (American English) or licence (Commonwealth English) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit). A license is granted by a party (licensor) to another part ...
s unnecessary, as no owner/author is required to grant permission (" Permission culture"). There are multiple licenses which aim to release works into the public domain. In 2000 the WTFPL was released as a public domain like
software license A software license is a legal instrument governing the use or redistribution of software. Since the 1970s, software copyright has been recognized in the United States. Despite the copyright being recognized, most companies prefer to sell lic ...
. Creative Commons (created in 2002 by
Lawrence Lessig Lester Lawrence "Larry" Lessig III (born June 3, 1961) is an American legal scholar and political activist. He is the Roy L. Furman Professor of Law at Harvard Law School and the former director of the Edmond J. Safra Center for Ethics at Harvar ...
,
Hal Abelson Harold Abelson (born April 26, 1947) is an American mathematician and computer scientist. He is a professor of computer science and engineering in the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Tec ...
, and Eric Eldred) has introduced several public-domain-like licenses, called
Creative Commons license A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work". A CC license is used when an author wants to give other people the right to share, use, and bu ...
s. These give authors of works (that would qualify for copyright) the ability to decide which protections they would like to place on their material. As copyright is the default license for new material, Creative Commons licenses offer authors a variety of options to designate their work under whichever license they wish, as long as this does not violate standing copyright law. For example, a CC BY license allows for re-users to distribute, remix, adapt, and build upon material, while also agreeing to provide attribution to the author in any of these cases. In 2009 the
Creative Commons Creative Commons (CC) is an American non-profit organization and international network devoted to educational access and expanding the range of creative works available for others to build upon legally and to share. The organization has release ...
released the CC0, which was created for
compatibility Compatibility may refer to: Computing * Backward compatibility, in which newer systems can understand data generated by older ones * Compatibility card, an expansion card for hardware emulation of another device * Compatibility layer, componen ...
with law domains which have no concept of ''dedicating into public domain''. This is achieved by a public domain waiver statement and a fallback all-permissive license, in case the waiver is not possible. Unlike in the US, where author's moral rights are generally not specifically regulated, in some countries where moral rights are protected separately in law it is not possible to waive those rights, but only the rights related to the exploitation of the work. A solution to this issue (as found in the Creative Commons Zero dedication) is to interpret the license by setting "three different layers of action. First, the right holder waives any copyright and related rights that can be waived in accordance with the applicable law. Secondly, if there are rights that the right holder cannot waive under applicable law, they are licensed in a way that mirrors as closely as possible the legal effect of a waiver. And finally, if there are any rights that the right holders cannot waive or license, they affirm that they will not exercise them and they will not assert any claim with respect to the use of the work, once again within the limits of applicable law. (...) In countries where moral rights exist but where they can be waived or not asserted, they are waived if asserted (e.g. the UK). In countries where they cannot be waived they will remain into full effect in accordance to the applicable law (think of France, Spain or Italy where moral rights cannot be waived)." The same occurs in Switzerland. The Unlicense, published around 2010, has a focus on an
anti-copyright Criticism of copyright, or anti-copyright sentiment, is a dissenting view of the current state of copyright law or copyright as a concept. Critics often discuss philosophical, economical, or social rationales of such laws and the laws' implem ...
message. The Unlicense offers a public domain waiver text with a fallback public domain-like license inspired by permissive licenses but without attribution. Another option is the Zero Clause BSD license, released in 2006 and aimed at software. In October 2014, the
Open Knowledge Foundation Open Knowledge Foundation (OKF) is a global, non-profit network that promotes and shares information at no charge, including both content and data. It was founded by Rufus Pollock on 20 May 2004 in Cambridge, England. It is incorporated in Engla ...
recommends the Creative Commons CC0 license to dedicate content to the public domain, and the Open Data Commons Public Domain Dedication and License (PDDL) for data.


Patents

In most countries, the term of rights for patents is 20 years, after which the invention becomes part of the public domain. In the United States, the contents of patents are considered valid and enforceable for 20 years from the date of filing within the United States or 20 years from the earliest date of filing if under 35 USC 120, 121, or 365(c). However, the ''text'' and any ''illustration'' within a patent, provided the illustrations are essentially line drawings and do not in any substantive way reflect the "personality" of the person drawing them, are not subject to copyright protection. This is separate from the ''patent'' rights just mentioned.


Trademarks

A trademark registration may remain in force indefinitely, or expire without specific regard to its age. For a trademark registration to remain valid, the owner must continue to use it. In some circumstances, such as disuse, failure to assert trademark rights, or common usage by the public without regard for its intended use, it could become generic, and therefore part of the public domain. Because trademarks are registered with governments, some countries or trademark registries may recognize a mark, while others may have determined that it is generic and not allowable as a trademark in that registry. For example, the drug acetylsalicylic acid (2-acetoxybenzoic acid) is better known as ''
aspirin Aspirin () is the genericized trademark for acetylsalicylic acid (ASA), a nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, fever, and inflammation, and as an antithrombotic. Specific inflammatory conditions that aspirin is ...
'' in the United States—a generic term. In Canada, however, ''Aspirin'', with an uppercase A, is still a trademark of the German company
Bayer Bayer AG (English: , commonly pronounced ; ) is a German multinational pharmaceutical and biotechnology company and is one of the largest pharmaceutical companies and biomedical companies in the world. Headquartered in Leverkusen, Bayer' ...
, while aspirin, with a lowercase "a", is not. Bayer lost the trademark in the United States, the UK and France after World War I, as part of the
Treaty of Versailles The Treaty of Versailles was a peace treaty signed on 28 June 1919. As the most important treaty of World War I, it ended the state of war between Germany and most of the Allies of World War I, Allied Powers. It was signed in the Palace ...
. So many copycat products entered the marketplace during the war that it was deemed generic just three years later. Informal uses of trademarks are not covered by trademark protection. For example,
Hormel Hormel Foods Corporation, doing business as Hormel Foods or simply Hormel, is an American multinational corporation, multinational food processing company founded in 1891 in Austin, Minnesota, Austin, Minnesota, by George A. Hormel as George A ...
, producer of the canned meat product
Spam Spam most often refers to: * Spam (food), a consumer brand product of canned processed pork of the Hormel Foods Corporation * Spamming, unsolicited or undesired electronic messages ** Email spam, unsolicited, undesired, or illegal email messages ...
, does not object to informal use of the word "spam" in reference to unsolicited commercial email. However, it has fought attempts by other companies to register names including the word 'spam' as a
trademark A trademark (also written trade mark or trade-mark) is a form of intellectual property that consists of a word, phrase, symbol, design, or a combination that identifies a Good (economics and accounting), product or Service (economics), service f ...
in relation to computer products, despite that Hormel's trademark is only registered in reference to food products (a trademark claim is made within a particular field). Such defences have failed in the United Kingdom.


Public Domain Day

Public Domain Day is an observance of when copyrighted works expire and works enter into the public domain. This legal transition of copyright works into the public domain usually happens every year on 1 January based on the individual copyright laws of each country. The observance of a "Public Domain Day" was initially informal; the earliest known mention was in 2004 by Wallace McLean (a Canadian public domain activist), with support for the idea echoed by
Lawrence Lessig Lester Lawrence "Larry" Lessig III (born June 3, 1961) is an American legal scholar and political activist. He is the Roy L. Furman Professor of Law at Harvard Law School and the former director of the Edmond J. Safra Center for Ethics at Harvar ...
. there is as Public Domain Day website lists the authors whose works are entering the public domain. There are activities in countries around the world by various organizations all under the banner Public Domain Day, this can help people around the world celebrate works written a while ago.


See also


References


Works cited

* * *


External links


Center for the Study of the Public Domain
Duke University Duke University is a Private university, private research university in Durham, North Carolina, United States. Founded by Methodists and Quakers in the present-day city of Trinity, North Carolina, Trinity in 1838, the school moved to Durham in 1 ...

Communia
internet association on the digital public domain {{Authority control Articles containing video clips Copyright law Copyright law legal terminology Intellectual property law Stock media