The year 1884 in science and technology involved some significant events, listed below.

Chemistry

* October 14 –

George Eastman George Eastman (July 12, 1854March 14, 1932) was an American entrepreneur who founded the Eastman Kodak Company and helped to bring the photographic use of roll film into the mainstream. He was a major philanthropist, establishing the East ...

is granted his first

patent 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 disclo ...

s for photographic

roll film Roll film or rollfilm is any type of spool-wound photographic film protected from white light exposure by a paper backing. The term originated in contrast to sheet film. Confusingly, roll film was originally often referred to as "cartridge" film ...

in the United States. * J. H. van 't Hoff proposes the

Arrhenius equation In physical chemistry, the Arrhenius equation is a formula for the temperature dependence of reaction rates. The equation was proposed by Svante Arrhenius in 1889, based on the work of Dutch chemist Jacobus Henricus van 't Hoff who had noted in 18 ...

for the temperature dependence of the

reaction rate constant In chemical kinetics a reaction rate constant or reaction rate coefficient, ''k'', quantifies the rate and direction of a chemical reaction. For a reaction between reactants A and B to form product C the reaction rate is often found to have the ...

, and therefore, rate of a chemical reaction. *

Hermann Emil Fischer Hermann Emil Louis Fischer (; 9 October 1852 – 15 July 1919) was a German chemist and 1902 recipient of the Nobel Prize in Chemistry. He discovered the Fischer esterification. He also developed the Fischer projection, a symbolic way of dra ...

proposes the structure of

purine Purine is a heterocyclic aromatic organic compound that consists of two rings ( pyrimidine and imidazole) fused together. It is water-soluble. Purine also gives its name to the wider class of molecules, purines, which include substituted purin ...

, a key component in many biomolecules, which he synthesizes in 1898; he also begins work on the chemistry of

glucose Glucose is a simple sugar with the molecular formula . Glucose is overall the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, usi ...

and related sugars. *

Henry Louis Le Chatelier Henry Louis Le Chatelier (; 8 October 1850 – 17 September 1936) was a French chemist of the late 19th and early 20th centuries. He devised Le Chatelier's principle, used by chemists and chemical engineers to predict the effect a changing conditi ...

develops

Le Chatelier's principle Le Chatelier's principle (pronounced or ), also called Chatelier's principle (or the Equilibrium Law), is a principle of chemistry used to predict the effect of a change in conditions on chemical equilibria. The principle is named after French c ...

, which explains the response of dynamic

chemical equilibria In a chemical reaction, chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of th ...

to external stresses.

Mathematics

Georg Cantor Georg Ferdinand Ludwig Philipp Cantor ( , ; – January 6, 1918) was a German mathematician. He played a pivotal role in the creation of set theory, which has become a fundamental theory in mathematics. Cantor established the importance of ...

introduces the

Cantor function In mathematics, the Cantor function is an example of a function that is continuous, but not absolutely continuous. It is a notorious counterexample in analysis, because it challenges naive intuitions about continuity, derivative, and measure ...

. *

Gottlob Frege Friedrich Ludwig Gottlob Frege (; ; 8 November 1848 – 26 July 1925) was a German philosopher, logician, and mathematician. He was a mathematics professor at the University of Jena, and is understood by many to be the father of analytic ph ...

publishes ''Die Grundlagen der Arithmetik'' ("The Foundations of Arithmetic") presenting a theory of

logicism In the philosophy of mathematics, logicism is a programme comprising one or more of the theses that — for some coherent meaning of 'logic' — mathematics is an extension of logic, some or all of mathematics is reducible to logic, or some or a ...

. *

Edwin Abbott Abbott Edwin Abbott Abbott (20 December 1838 – 12 October 1926) was an English schoolmaster, theologian, and Anglican priest, best known as the author of the novella ''Flatland'' (1884). Biography Edwin Abbott Abbott was the eldest son of ...

(as "A Square") publishes '' Flatland: A Romance of Many Dimensions'', a mathematical

novella A novella is a narrative prose fiction whose length is shorter than most novels, but longer than most short stories. The English word ''novella'' derives from the Italian ''novella'' meaning a short story related to true (or apparently so) fact ...

Medicine

* Dr

Takaki Kanehiro Baron was a Japanese naval physician. Early life Born in Hyūga Province (present-day Miyazaki Prefecture) as the son of a ''samurai'' retainer to the Satsuma domain, Takaki studied Chinese medicine as a youth and served as a medic in the B ...

of the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender ...

conducts a

controlled experiment A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable (i.e. confounding variables). This increases the reliability of the results, often through a comparison bet ...

demonstrating that deficient diet is the cause of

beriberi Thiamine deficiency is a medical condition of low levels of thiamine (Vitamin B1). A severe and chronic form is known as beriberi. The two main types in adults are wet beriberi and dry beriberi. Wet beriberi affects the cardiovascular system, r ...

, but mistakenly concludes that sufficient protein alone would prevent it. * Georg Theodor Gaffky isolates the pathogenic

bacillus ''Bacillus'' (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum '' Bacillota'', with 266 named species. The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural ''Bacil ...

salmonella typhi ''Salmonella enterica'' subsp. ''enterica'' is a subspecies of ''Salmonella enterica'', the rod-shaped, flagellated, aerobic, Gram-negative bacterium. Many of the pathogenic serovars of the ''S. enterica'' species are in this subspecies, includ ...

'' as the cause of

typhoid fever Typhoid fever, also known as typhoid, is a disease caused by '' Salmonella'' serotype Typhi bacteria. Symptoms vary from mild to severe, and usually begin six to 30 days after exposure. Often there is a gradual onset of a high fever over severa ...

. * Robert Koch and

Friedrich Loeffler Friedrich August Johannes Loeffler (; 24 June 18529 April 1915) was a German bacteriologist at the University of Greifswald. Biography He obtained his M.D. degree from the University of Berlin in 1874. He worked with Robert Koch from 1879 to 1884 ...

formulate

Koch's postulates Koch's postulates ( )"Koch"
''

microbe A microorganism, or microbe,, ''mikros'', "small") and ''organism'' from the el, ὀργανισμός, ''organismós'', "organism"). It is usually written as a single word but is sometimes hyphenated (''micro-organism''), especially in olde ...

s and diseases. Loeffler also discovers the causative organism for

diphtheria Diphtheria is an infection caused by the bacterium '' Corynebacterium diphtheriae''. Most infections are asymptomatic or have a mild clinical course, but in some outbreaks more than 10% of those diagnosed with the disease may die. Signs and s ...

, ''Corynebacterium diphtheriae''. *

Ophthalmologist Ophthalmology ( ) is a surgery, surgical subspecialty within medicine that deals with the diagnosis and treatment of eye disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Followin ...

Karl Koller announces his use of a

local anesthetic A local anesthetic (LA) is a medication that causes absence of pain sensation. In the context of surgery, a local anesthetic creates an absence of pain in a specific location of the body without a loss of consciousness, as opposed to a general an ...

(

cocaine Cocaine (from , from , ultimately from Quechua: ''kúka'') is a central nervous system (CNS) stimulant mainly used recreationally for its euphoric effects. It is primarily obtained from the leaves of two Coca species native to South Am ...

) in surgery; Jellinek also demonstrates cocaine's effects as an anesthetic on the

respiratory system The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies grea ...

. *

Friedrich Schultze Friedrich Schultze (12 August 1848 – 14 October 1934) was a German neurologist and native of Rathenow, Brandenburg. He is known for being the founder of child neurology. In 1871 he earned his doctorate at Heidelberg, and afterwards spent seve ...

first describes the disorder that will become known as

Charcot–Marie–Tooth disease Charcot–Marie–Tooth disease (CMT) is a hereditary motor and sensory neuropathy of the peripheral nervous system characterized by progressive loss of muscle tissue and touch sensation across various parts of the body. This disease is the most ...

. * First known case of

artificial insemination Artificial insemination is the deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment ...

sperm donation Sperm donation is the provision by a man of his sperm with the intention that it be used in the artificial insemination or other 'fertility treatment' of a woman or women who are not his sexual partners in order that they may become pregnant by h ...

: William H. Pancoast, a professor in Philadelphia, takes sperm from his "best looking" student to inseminate an anesthetized woman without her knowledge, not reported for 25 years. * Among the papers on

brain function The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head ( cephalization), usually near organs for special se ...

published by

Vladimir Bekhterev Vladimir Mikhailovich Bekhterev ( rus, Влади́мир Миха́йлович Бе́хтерев, p=ˈbʲextʲɪrʲɪf; January 20, 1857 – December 24, 1927) was a Russian neurologist and the father of objective psychology. He is best known ...

is a study on the formation of the human conception of space.

Physics

Ludwig Boltzmann Ludwig Eduard Boltzmann (; 20 February 1844 – 5 September 1906) was an Austrian physicist and philosopher. His greatest achievements were the development of statistical mechanics, and the statistical explanation of the second law of thermod ...

derives the

Stefan–Boltzmann law The Stefan–Boltzmann law describes the power radiated from a black body in terms of its temperature. Specifically, the Stefan–Boltzmann law states that the total energy radiated per unit surface area of a black body across all wavelengths ...

on blackbody radiant flux from thermodynamic principles.

Technology

* February 12 –

Lewis Waterman Lewis Edson Waterman (November 20, 1836 – May 1, 1901) was an American inventor. He held multiple fountain pen patents and was the founder of the Waterman Pen Company. His entry into fountain pen manufacturing has only recently been proper ...

gets his first

for a capillary feed

fountain pen A fountain pen is a writing instrument which uses a metal nib to apply a water-based ink to paper. It is distinguished from earlier dip pens by using an internal reservoir to hold ink, eliminating the need to repeatedly dip the pen in an i ...

in the United States. * May 16 –

Angelo Moriondo Angelo Moriondo (6 June 1851 – 31 May 1914) was an Italian inventor, who is usually credited with patenting the earliest known espresso machine, in 1884. His machine used a combination of steam and boiling water to efficiently brew coffee. ...

Turin Turin ( , Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital from 1861 to 1865. Th ...

is granted a

for an

espresso machine An espresso machine brews coffee by forcing pressurized water near boiling point through a "puck" of ground coffee and a filter in order to produce a thick, concentrated coffee called espresso. The first machine for making espresso was built i ...

. * June 13 –

LaMarcus Adna Thompson LaMarcus Adna Thompson (March 8, 1848 – May 8, 1919) was an American inventor and businessman most famous for developing a variety of gravity rides and roller coasters. Early years Thompson was born in Jersey, Licking County, Ohio on March ...

opens the "Gravity Pleasure

Switchback Railway The original Switchback Railway was the first roller coaster at Coney Island in Brooklyn, New York City, and one of the earliest designed for amusement in the United States. The 1885 patent states the invention relates to the gravity double tr ...

" at

Coney Island Coney Island is a peninsular neighborhood and entertainment area in the southwestern section of the New York City borough of Brooklyn. The neighborhood is bounded by Brighton Beach and Manhattan Beach to its east, Lower New York Bay to th ...

, New York City. * October –

Hiram Maxim Sir Hiram Stevens Maxim (5 February 1840 – 24 November 1916) was an American- British inventor best known as the creator of the first automatic machine gun, the Maxim gun. Maxim held patents on numerous mechanical devices such as hair-cur ...

first demonstrates the

Maxim gun The Maxim gun is a recoil-operated machine gun invented in 1884 by Hiram Stevens Maxim. It was the first fully automatic machine gun in the world. The Maxim gun has been called "the weapon most associated with imperial conquest" by historia ...

, the first self-powered machine gun. * Fall –

Chester H. Pond Chester H. Pond (March 26, 1844 – June 11, 1912) was an American inventor. He invented many devices used in telegraphy. In later life he was a railroad developer. He also founded the town of Moorhead, Mississippi Moorhead is a city in Su ...

invents the first electrical self-winding clock. *

Charles Renard Charles Renard (1847–1905) born in Damblain, Vosges, was a French military engineer. Airships After the Franco-Prussian War of 1870-1871 he started work on the design of airships at the French army aeronautical department. Together with A ...

and

Arthur Constantin Krebs Arthur Constantin Krebs (16 November 1850 in Vesoul, France – 22 March 1935 in Quimperlé, France) was a French officer and pioneer in automotive engineering. Life Collaborating with Charles Renard, he piloted the first fully control ...

make a fully controllable free-flight in

French Army The French Army, officially known as the Land Army (french: Armée de Terre, ), is the land-based and largest component of the French Armed Forces. It is responsible to the Government of France, along with the other components of the Armed Force ...

airship '' La France'' with an electric motor.

Other events

* September 24 –

Smeaton's Tower Smeaton's Tower is a memorial to civil engineer John Smeaton, designer of the third and most notable Eddystone Lighthouse. A major step forward in lighthouse design, Smeaton's structure was in use from 1759 to 1877, until erosion of the ledge it ...

opened to the public on

Plymouth Hoe Plymouth Hoe, referred to locally as the Hoe, is a large south-facing open public space in the English coastal city of Plymouth. The Hoe is adjacent to and above the low limestone cliffs that form the seafront and it commands views of Plymouth ...

as a monument to the history of civil engineering. * October 22 –

International Meridian Conference The International Meridian Conference was a conference held in October 1884 in Washington, D.C., in the United States, to determine a prime meridian for international use. The conference was held at the request of U.S. President Chester A. ...

in Washington, D.C. fixes the

Greenwich meridian The historic prime meridian or Greenwich meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. The modern IERS Reference Meridian widely used today is based on the Greenwich mer ...

as the world's prime meridian. *

Sophie Bryant Sophie Willock Bryant (15 February 1850, Sandymount, Dublin, – 14 August 1922, Chamonix, France) was an Anglo-Irish mathematician, educator, feminist and activist. Early life and education Bryant was born Sophie Willock in Dublin in 1850. ...

becomes the first woman in England to be awarded the degree of

Doctor of Science Doctor of Science ( la, links=no, Scientiae Doctor), usually abbreviated Sc.D., D.Sc., S.D., or D.S., is an academic research degree awarded in a number of countries throughout the world. In some countries, "Doctor of Science" is the degree used f ...

, by the

University of London The University of London (UoL; abbreviated as Lond or more rarely Londin in post-nominals) is a federal public research university located in London, England, United Kingdom. The university was established by royal charter in 1836 as a degre ...

. Also in this year, she is the first woman to publish a paper with the

London Mathematical Society The London Mathematical Society (LMS) is one of the United Kingdom's learned societies for mathematics (the others being the Royal Statistical Society (RSS), the Institute of Mathematics and its Applications (IMA), the Edinburgh Mathematical S ...

. *

Sofia Kovalevskaya Sofya Vasilyevna Kovalevskaya (russian: link=no, Софья Васильевна Ковалевская), born Korvin-Krukovskaya ( – 10 February 1891), was a Russian mathematician who made noteworthy contributions to analysis, partial differen ...

is appointed "Professor Extraordinarius" in mathematics at

Stockholm University Stockholm University ( sv, Stockholms universitet) is a public research university in Stockholm, Sweden, founded as a college in 1878, with university status since 1960. With over 33,000 students at four different faculties: law, humanities, s ...

and becomes the editor of ''

Acta Mathematica ''Acta Mathematica'' is a peer-reviewed open-access scientific journal covering research in all fields of mathematics. According to Cédric Villani, this journal is "considered by many to be the most prestigious of all mathematical research jou ...

''.

Awards

Copley Medal The Copley Medal is an award given by the Royal Society, for "outstanding achievements in research in any branch of science". It alternates between the physical sciences or mathematics and the biological sciences. Given every year, the medal is t ...

Carl Ludwig Carl Friedrich Wilhelm Ludwig (; 29 December 1816 – 23 April 1895) was a German physician and physiologist. His work as both a researcher and teacher had a major influence on the understanding, methods and apparatus used in almost all branche ...

Wollaston Medal The Wollaston Medal is a scientific award for geology, the highest award granted by the Geological Society of London. The medal is named after William Hyde Wollaston, and was first awarded in 1831. It was originally made of gold (1831–1845), t ...

for Geology:

Albert Jean Gaudry Jean Albert Gaudry (16 September 1827 – 27 November 1908) was a French geologist and palaeontologist. He was born at St Germain-en-Laye, and was educated at the Catholic Collège Stanislas de Paris. He was a notable proponent of theistic evolut ...

Births

* January 26 –

Edward Sapir Edward Sapir (; January 26, 1884 – February 4, 1939) was an American Jewish anthropologist- linguist, who is widely considered to be one of the most important figures in the development of the discipline of linguistics in the United States. Sa ...

(died

1939 This year also marks the start of the Second World War, the largest and deadliest conflict in human history. Events Below, the events of World War II have the "WWII" prefix. January * January 1 ** Third Reich *** Jews are forbidde ...

), Pomeranian-born anthropological linguist. * January 28 **

Auguste Piccard Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer known for his record-breaking hydrogen balloon flights, with which he studied the Earth's upper atmosphere. Piccard was also known for his ...

(died

1962 Events January * January 1 – Western Samoa becomes independent from New Zealand. * January 3 – Pope John XXIII excommunicates Fidel Castro for preaching communism. * January 8 – Harmelen train disaster: 93 die in the wo ...

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri *Swiss, North Carolina * Swiss, West Virginia * Swiss, Wisconsin Other uses * Swiss-system tournament, in various games and sports *Swiss Internati ...

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate ca ...

and

explorer Exploration refers to the historical practice of discovering remote lands. It is studied by geographers and historians. Two major eras of exploration occurred in human history: one of convergence, and one of divergence. The first, covering most ...

. **

Jean Piccard Jean Felix Piccard (January 28, 1884 in Basel, Switzerland – January 28, 1963 in Minneapolis, Minnesota), also known as Jean Piccard, was a Swiss-born American chemist, engineer, professor and high-altitude balloonist. He invented clustere ...

(died

1963 Events January * January 1 – Bogle–Chandler case: Commonwealth Scientific and Industrial Research Organisation scientist Dr. Gilbert Bogle and Mrs. Margaret Chandler are found dead (presumed poisoned), in bushland near the Lane Co ...

), Swiss-born

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe ...

and explorer. * March 24 –

Chika Kuroda Chika Kuroda (黒田チカ; 24 March 1884 – 8 November 1968) was a Japanese chemist whose research focused on natural pigments. She was the first woman in Japan to receive a Bachelor of Science. Biography Chika Kuroda was born in Saga, Kyush ...

(died

1968 The year was highlighted by Protests of 1968, protests and other unrests that occurred worldwide. Events January–February * January 5 – "Prague Spring": Alexander Dubček is chosen as leader of the Communist Party of Czechos ...

), Japanese chemist. * July 2 –

Alfons Maria Jakob Alfons Maria Jakob (2 July 1884 – 17 October 1931) was a German neurologist who worked in the field of neuropathology. He was born in Aschaffenburg, Bavaria and educated in medicine at the universities of Munich, Berlin, and Strasbourg, wh ...

(died

1931 Events January * January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics. * January 4 – German pilot Elly Beinhorn begins her flight to Africa. * January 22 – Sir I ...

), German

neuropathologist Neuropathology is the study of disease of nervous system tissue, usually in the form of either small surgical biopsies or whole-body autopsies. Neuropathologists usually work in a department of anatomic pathology, but work closely with the clin ...

. * July 4 –

Eleanor Williams Fannie Eleanor Williams MBE, ARRC (4 July 1884 – 16 June 1963), known as Eleanor Williams, was an Australian scientist. She served as a bacteriologist during World War I, and was the third scientist and the first woman appointed to work at ...

(died

), Australian

bacteriologist A bacteriologist is a microbiologist, or similarly trained professional, in bacteriology -- a subdivision of microbiology that studies bacteria, typically pathogenic ones. Bacteriologists are interested in studying and learning about bacteria, as ...

and

serologist Serology is the scientific study of serum and other body fluids. In practice, the term usually refers to the diagnostic identification of antibodies in the serum. Such antibodies are typically formed in response to an infection (against a given mi ...

. * February 23 –

Casimir Funk Kazimierz Funk (; February 23, 1884 – November 19, 1967), commonly anglicized as Casimir Funk, was a Polish-American biochemist generally credited with being among the first to formulate (in 1912) the concept of vitamins, which he called "vita ...

(died

1967 Events January * January 1 – Canada begins a year-long celebration of the 100th anniversary of Canadian Confederation, Confederation, featuring the Expo 67 World's Fair. * January 5 ** Spain and Romania sign an agreement in Paris, establ ...

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

biochemist Biochemists are scientists who are trained in biochemistry. They study chemical processes and chemical transformations in living organisms. Biochemists study DNA, proteins and cell parts. The word "biochemist" is a portmanteau of "biological che ...

, coiner of the term

vitamin A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism. Essential nut ...

. * August 5 –

Ludwik Hirszfeld Ludwik Hirszfeld (5 August 1884 – 7 March 1954) was a Polish microbiologist and serologist. He is considered a co-discoverer of the inheritance of ABO blood types. Life He was a cousin of Aleksander Rajchman, a Polish mathematician, and of ...

(died 1954), Polish

microbiologist A microbiologist (from Greek ) is a scientist who studies microscopic life forms and processes. This includes study of the growth, interactions and characteristics of microscopic organisms such as bacteria, algae, fungi, and some types of par ...

and

. * August 31 –

George Sarton George Alfred Leon Sarton (; 31 August 1884 – 22 March 1956) was a Belgian-born American chemist and historian. He is considered the founder of the discipline of the history of science as an independent field of study. His most influential works ...

(died

1956 Events January * January 1 – The Anglo-Egyptian Condominium ends in Sudan. * January 8 – Operation Auca: Five U.S. evangelical Christian missionaries, Nate Saint, Roger Youderian, Ed McCully, Jim Elliot and Pete Fleming, are kille ...

Flemish Flemish (''Vlaams'') is a Low Franconian dialect cluster of the Dutch language. It is sometimes referred to as Flemish Dutch (), Belgian Dutch ( ), or Southern Dutch (). Flemish is native to Flanders, a historical region in northern Belgium ...

historian of science. * November 8 –

Hermann Rorschach Hermann Rorschach (; 8 November 1884 – 2 April 1922) was a Swiss psychiatrist and psychoanalyst. His education in art helped to spur the development of a set of inkblots that were used experimentally to measure various unconscious parts of the s ...

(died

1922 Events January * January 7 – Dáil Éireann, the parliament of the Irish Republic, ratifies the Anglo-Irish Treaty by 64–57 votes. * January 10 – Arthur Griffith is elected President of Dáil Éireann, the day after Éamon de Valera ...

), Swiss

psychiatrist A psychiatrist is a physician who specializes in psychiatry, the branch of medicine devoted to the diagnosis, prevention, study, and treatment of mental disorders. Psychiatrists are physicians and evaluate patients to determine whether their ...

Deaths

* January 6 –

Gregor Mendel Gregor Johann Mendel, OSA (; cs, Řehoř Jan Mendel; 20 July 1822 – 6 January 1884) was a biologist, meteorologist, mathematician, Augustinian friar and abbot of St. Thomas' Abbey in Brünn (''Brno''), Margraviate of Moravia. Mendel wa ...

(born 1822), Silesian

geneticist A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms. A geneticist can be employed as a scientist or a lecturer. Geneticists may perform general research on genetic processes ...

. * February 7 –

Johann Friedrich Julius Schmidt Johann Friedrich Julius Schmidt (25 October 1825 in Eutin, Germany – 7 February 1884 in Athens, Greece) was a German astronomer and geophysicist. He was the director of the National Observatory of Athens in Greece from 1858 to 1884. Julius Sch ...

(born 1825), German astronomer. * May 10 –

Charles-Adolphe Wurtz Charles Adolphe Wurtz (; 26 November 181710 May 1884) was an Alsatian French chemist. He is best remembered for his decades-long advocacy for the atomic theory and for ideas about the structures of chemical compounds, against the skeptical opinio ...

(born 1817), Alsatian French

. * May 12 –

Robert Angus Smith Robert Angus Smith FRS (15 February 1817 – 12 May 1884) was a Scottish chemist, who investigated numerous environmental issues. He is known for his research on air pollution in 1852, in the course of which he discovered what came to be kn ...

(born 1817), British atmospheric chemist. * May 13 –

Cyrus McCormick Cyrus Hall McCormick (February 15, 1809 – May 13, 1884) was an American inventor and businessman who founded the McCormick Harvesting Machine Company, which later became part of the International Harvester Company in 1902. Originally from the ...

(born 1809), American inventor. * July 18 –

Ferdinand von Hochstetter Christian Gottlieb Ferdinand Ritter von Hochstetter (30 April 1829 – 18 July 1884) was a German- Austrian geologist. Career Having received his early education at the evangelical seminary at Maulbronn, Ferdinand proceeded to the University o ...

(born 1829), German geologist. * July 20 – Sir

Caesar Hawkins Caesar (or Cæsar) Henry Hawkins FRS (19 September 1798 – 20 July 1884) was a British surgeon. Life He was the son of the Rev. E. Hawkins and grandson of Sir Cæsar Hawkins, 1st Baronet (1711-1786), Serjeant-Surgeon to George II and Georg ...

(born 1798), English surgeon. * November 3 -

Antoine Constant Saucerotte Antoine Constant Saucerotte (13 August 1805 in Moscow - 3 November 1884 in Lunéville) was a French physician known in the 19th century for his popularisation work. Early life and education Constant Saucerotte was the son of Vïctor Joseph Sauc ...

(born

1805 After thirteen years the First French Empire abolished the French Republican Calendar in favour of the Gregorian calendar. Events January–March * January 11 – The Michigan Territory is created. * February 7 – King Anouvong become ...

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ...

physician A physician (American English), medical practitioner (Commonwealth English), medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through th ...

* November 11 –

Alfred Brehm Alfred Edmund Brehm (; 2 February 1829 – 11 November 1884) was a German zoologist, writer, director of zoological gardens and the son of Christian Ludwig Brehm, a famous pastor and ornithologist. Through the book title '' Brehms Tierl ...

(born 1829), German

zoologist Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and ...

. * November 25 –

Hermann Kolbe Adolph Wilhelm Hermann Kolbe (27 September 1818 – 25 November 1884) was a major contributor to the birth of modern organic chemistry. He was a professor at Marburg and Leipzig. Kolbe was the first to apply the term synthesis in a chemical cont ...

(born 1818), German chemist.

References

{{reflist, colwidth=30em 19th century in science 1880s in science