The year 1749 in

science Science is a systematic endeavor that Scientific method, builds and organizes knowledge in the form of Testability, testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earli ...

and

technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, scie ...

involved some significant events.

Astronomy

Pierre Bouguer Pierre Bouguer () (16 February 1698, Croisic – 15 August 1758, Paris) was a French mathematician, geophysicist, geodesist, and astronomer. He is also known as "the father of naval architecture". Career Bouguer's father, Jean Bouguer, one ...

publishes
La figure de la terre
' in

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. ...

, describing some of the results of his work with

Charles Marie de La Condamine Charles Marie de La Condamine (28 January 1701 – 4 February 1774) was a French explorer, geographer, and mathematician. He spent ten years in territory which is now Ecuador, measuring the length of a degree of latitude at the equator and prepa ...

on the

French Geodesic Mission The French Geodesic Mission to the Equator (french: Expédition géodésique française en Équateur, also called the French Geodesic Mission to Peru and the Spanish-French Geodesic Mission) was an 18th-century expedition to what is now Ecuador c ...

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

(begun in

1735 Events January–March * January 2 – Alexander Pope's poem ''Epistle to Dr Arbuthnot'' is published in London. * January 8 – George Frideric Handel's opera ''Ariodante'' is premièred at the Royal Opera House in Coven ...

) to measure a degree of the

meridian arc In geodesy and navigation, a meridian arc is the curve between two points on the Earth's surface having the same longitude. The term may refer either to a segment of the meridian, or to its length. The purpose of measuring meridian arcs is to ...

near the

equator The equator is a circle of latitude, about in circumference, that divides Earth into the Northern and Southern hemispheres. It is an imaginary line located at 0 degrees latitude, halfway between the North and South poles. The term can al ...

Biology

* Georges-Louis Leclerc, ''afterwards'' Comte du Buffon, begins publication of his .

Mathematics

* April 12 –

Euler Leonhard Euler ( , ; 15 April 170718 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who founded the studies of graph theory and topology and made pioneering and influential discoveries in ma ...

produces the first proof of

Fermat's theorem on sums of two squares In additive number theory, Fermat's theorem on sums of two squares states that an odd prime ''p'' can be expressed as: :p = x^2 + y^2, with ''x'' and ''y'' integers, if and only if :p \equiv 1 \pmod. The prime numbers for which this is tr ...

, based on

infinite descent In mathematics, a proof by infinite descent, also known as Fermat's method of descent, is a particular kind of proof by contradiction used to show that a statement cannot possibly hold for any number, by showing that if the statement were to hold f ...

Institutions

* April 12 – Official opening of the

Radcliffe Library The Radcliffe Science Library (RSL) is the main teaching and research science library at the University of Oxford in Oxford, England. Being officially part of the Bodleian Libraries, the library holds the Legal Deposit material for the sciences a ...

Oxford Oxford () is a city in England. It is the county town and only city of Oxfordshire. In 2020, its population was estimated at 151,584. It is north-west of London, south-east of Birmingham and north-east of Bristol. The city is home to the Un ...

, built under the will of the

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 ...

John Radcliffe (died

1714 Events January–March * January 21 – After being tricked into deserting a battle against India's Mughal Empire by the rebel Sayyid brothers, Prince Azz-ud-din Mirza is blinded on orders of the Emperor Farrukhsiyar as punishment. * Feb ...

) (although it does not become a primarily science library until 1810). * Pehr Wilhelm Wargentin appointed Secretary of the Royal Swedish Academy of Sciences in Stockholm, a position he will hold until his death in

1783 Events January–March * January 20 – At Versailles, Great Britain signs preliminary peace treaties with the Kingdom of France and the Kingdom of Spain. * January 23 – The Confederation Congress ratifies two October 8, ...

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 ...

John Harrison John Harrison ( – 24 March 1776) was a self-educated English carpenter and clockmaker who invented the marine chronometer, a long-sought-after device for solving the problem of calculating longitude while at sea. Harrison's solution revo ...

Births

* February 4 – Thomas Earnshaw,

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national id ...

watchmaker A watchmaker is an artisan who makes and repairs watches. Since a majority of watches are now factory-made, most modern watchmakers only repair watches. However, originally they were master craftsmen who built watches, including all their part ...

(died

1829 Events January–March * January 19 – August Klingemann's adaptation of Johann Wolfgang von Goethe's '' Faust'' premieres in Braunschweig. * February 27 – Battle of Tarqui: Troops of Gran Colombia and Peru battle to a draw. * ...

) * February 7 -

Philippe Petit-Radel Philippe Petit-Radel (Paris, 7 February 1749 – 30 November 1815) was a French physician, surgeon and writer, editor of the two volumes devoted to Surgery by the ''Encyclopédie méthodique''. Biography At the age of seventeen, he was awarded a ...

, French surgeon (died

1815 Events January * January 2 – Lord Byron marries Anna Isabella Milbanke in Seaham, county of Durham, England. * January 3 – Austria, Britain, and Bourbon-restored France form a secret defensive alliance treaty against Pr ...

) * March 23 –

Pierre-Simon Laplace Pierre-Simon, marquis de Laplace (; ; 23 March 1749 – 5 March 1827) was a French scholar and polymath whose work was important to the development of engineering, mathematics, statistics, physics, astronomy, and philosophy. He summarized ...

, French

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

and

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either o ...

(died

1827 Events January–March * January 5 – The first regatta in Australia is held, taking place on Tasmania (called at the time '' Van Diemen's Land''), on the River Derwent at Hobart. * January 15 – Furman University, founded in 1826 ...

) * May 17 –

Edward Jenner Edward Jenner, (17 May 1749 – 26 January 1823) was a British physician and scientist who pioneered the concept of vaccines, and created the smallpox vaccine, the world's first vaccine. The terms ''vaccine'' and ''vaccination'' are derived ...

, English

, inventor of the

smallpox Smallpox was an infectious disease caused by variola virus (often called smallpox virus) which belongs to the genus Orthopoxvirus. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) ce ...

vaccine A vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified. ...

(died

1823 Events January–March * January 22 – By secret treaty signed at the Congress of Verona, the Quintuple Alliance gives France a mandate to invade Spain for the purpose of restoring Ferdinand VII (who has been captured by armed revolution ...

) * September 6 –

Benjamin Bell Benjamin Bell of Hunthill FRSE FRCSEd (6 September 1749 – 5 April 1806) is considered to be the first Scottish scientific surgeon. He is commonly described as the father of the Edinburgh school of surgery,Richardson BWS, Martin MSM. Discipl ...

, Scottish surgeon (died

1806 Events January–March * January 1 ** The French Republican Calendar is abolished. ** The Kingdom of Bavaria is established by Napoleon. * January 5 – The body of Horatio Nelson, 1st Viscount Nelson, lies in state in the Painted Hal ...

) * September 25 –

Abraham Gottlob Werner Abraham Gottlob Werner (; 25 September 174930 June 1817) was a German geologist who set out an early theory about the stratification of the Earth's crust and propounded a history of the Earth that came to be known as Neptunism. While most ten ...

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, alt ...

(died

1817 Events January–March * January 1 – Sailing through the Sandwich Islands, Otto von Kotzebue discovers New Year Island. * January 19 – An army of 5,423 soldiers, led by General José de San Martín, starts crossing the ...

) * November 3 –

Daniel Rutherford Daniel Rutherford (3 November 1749 – 15 December 1819) was a Scottish physician, chemist and botanist who is known for the isolation of nitrogen in 1772. Life Rutherford was born on 3 November 1749, the son of Anne Mackay and Professor John ...

, Scottish

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 botanist noted for the isolation of

nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seve ...

(died

1819 Events January–March * January 2 – The Panic of 1819, the first major peacetime financial crisis in the United States, begins. * January 25 – Thomas Jefferson founds the University of Virginia. * January 29 – ...

)

Deaths

* September 10 –

Émilie du Châtelet Gabrielle Émilie Le Tonnelier de Breteuil, Marquise du Châtelet (; 17 December 1706 – 10 September 1749) was a French natural philosophy, natural philosopher and mathematician from the early 1730s until her maternal death, death due to compli ...

, French mathematician and

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 ...

(born

1706 In the Swedish calendar it was a common year starting on Monday, one day ahead of the Julian and ten days behind the Gregorian calendar. Events January–March * January 26 – War of Spanish Succession: The uprising by Bavarian ...

) * December 23 –

Mark Catesby Mark Catesby (24 March 1683 – 23 December 1749) was an English naturalist who studied the flora and fauna of the New World. Between 1729 and 1747 Catesby published his ''Natural History of Carolina, Florida and the Bahama Islands'', the fi ...

, English naturalist (born

1683 Events January–March * January 5 – The Brandenburger—African Company, of the German state of Brandenburg, signs a treaty with representatives of the Ahanta tribe (in what is now Ghana), to establish the fort and settlement ...

)

References

{{reflist 18th century in science 1740s in science