The year 1900 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 Reproducibility, reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in me ...

involved some significant events, listed below.

Aeronautics

* July 2 – The first

rigid airship A rigid airship is a type of airship (or dirigible) in which the Aerostat, envelope is supported by an internal framework rather than by being kept in shape by the pressure of the lifting gas within the envelope, as in blimps (also called pres ...

flight is made by the LZ1 designed by

Ferdinand von Zeppelin Count Ferdinand von Zeppelin (german: Ferdinand Adolf Heinrich August Graf von Zeppelin; 8 July 1838 – 8 March 1917) was a German general and later inventor of the Zeppelin rigid airships. His name soon became synonymous with airships a ...

. * c. October 3 – The Wright brothers begin their first manned

glider Glider may refer to: Aircraft and transport Aircraft * Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight ** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...

experimental flights at

Kitty Hawk, North Carolina Kitty Hawk is a town in Dare County, North Carolina, United States, and is a part of what is known as North Carolina's Outer Banks. The population was 3,708 at the 2020 Census. It was established in the early 18th century as Chickahawk. History ...

and failed for the first few attempts

Chemistry

Moses Gomberg Moses Gomberg (February 8, 1866 – February 12, 1947) was a chemistry professor at the University of Michigan. He was elected to the National Academy of Sciences and served as president of the American Chemical Society. Early life and education ...

identifies the first organic radical (according to the modern definition),

triphenylmethyl radical The triphenylmethyl radical (often shorted to trityl radical) is an organic compound with the formula (C6H5)3C. It is a persistent radical. It was the first radical ever to be described in organic chemistry. Because of its accessibility, the trit ...

. *

Johannes Rydberg Johannes (Janne) Robert Rydberg (; 8 November 1854 – 28 December 1919) was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to describe the wavelengths of photons (of visible light and other electrom ...

refines the expression for observed

hydrogen Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula . It is colorless, odorless, tasteless, non-toxic ...

line wavelengths.

Earth sciences

* Richard Dixon Oldham distinguishes between primary, secondary and tertiary

waveform In electronics, acoustics, and related fields, the waveform of a signal is the shape of its graph as a function of time, independent of its time and magnitude scales and of any displacement in time.David Crecraft, David Gorham, ''Electro ...

s as recorded by

seismometer A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph. The outpu ...

Exploration

* American explorer Robert Peary first sights

Kaffeklubben Island Kaffeklubben Island or Coffee Club Island ( da, Kaffeklubben Ø; kl, Inuit Qeqertaat) is an uninhabited island lying off the northern tip of Greenland. It contains the northernmost undisputed point of land on Earth. Discovery The first re ...

, the northernmost point of land on Earth.

Genetics

Hugo de Vries Hugo Marie de Vries () (16 February 1848 – 21 May 1935) was a Dutch botanist and one of the first geneticists. He is known chiefly for suggesting the concept of genes, rediscovering the laws of heredity in the 1890s while apparently unaware o ...

publishes the results of his experiments in

Mendelian inheritance Mendelian inheritance (also known as Mendelism) is a type of biological inheritance following the principles originally proposed by Gregor Mendel in 1865 and 1866, re-discovered in 1900 by Hugo de Vries and Carl Correns, and later popularize ...

Mathematics

Max Dehn Max Wilhelm Dehn (November 13, 1878 – June 27, 1952) was a German mathematician most famous for his work in geometry, topology and geometric group theory. Born to a Jewish family in Germany, Dehn's early life and career took place in Germany. ...

introduces two examples of

Dehn plane In geometry, Max Dehn introduced two examples of planes, a semi-Euclidean geometry and a non-Legendrian geometry, that have infinitely many lines parallel to a given one that pass through a given point, but where the sum of the angles of a triangle ...

and the

Dehn invariant In geometry, the Dehn invariant is a value used to determine whether one polyhedron can be cut into pieces and reassembled (" dissected") into another, and whether a polyhedron or its dissections can tile space. It is named after Max Dehn, who us ...

. * David Hilbert states his list of 23 problems which show where some further mathematical work is needed. *

Russell's paradox In mathematical logic, Russell's paradox (also known as Russell's antinomy) is a set-theoretic paradox discovered by the British philosopher and mathematician Bertrand Russell in 1901. Russell's paradox shows that every set theory that contains ...

is first discovered by

Ernst Zermelo Ernst Friedrich Ferdinand Zermelo (, ; 27 July 187121 May 1953) was a German logician and mathematician, whose work has major implications for the foundations of mathematics. He is known for his role in developing Zermelo–Fraenkel axiomatic se ...

but he does not publish it, and it is known only to

Hilbert David Hilbert (; ; 23 January 1862 – 14 February 1943) was a German mathematician, one of the most influential mathematicians of the 19th and early 20th centuries. Hilbert discovered and developed a broad range of fundamental ideas in many ...

Husserl , thesis1_title = Beiträge zur Variationsrechnung (Contributions to the Calculus of Variations) , thesis1_url = https://fedora.phaidra.univie.ac.at/fedora/get/o:58535/bdef:Book/view , thesis1_year = 1883 , thesis2_title ...

and other members of the

University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...

. *

Gaston Tarry Gaston Tarry (27 September 1843 – 21 June 1913) was a French mathematician. Born in Villefranche de Rouergue, Aveyron, he studied mathematics at high school before joining the civil service in Algeria. He pursued mathematics as an amateur. In ...

confirms Euler's conjecture that no 6×6 orthogonal

Graeco-Latin square In combinatorics, two Latin squares of the same size (''order'') are said to be ''orthogonal'' if when superimposed the ordered paired entries in the positions are all distinct. A set of Latin squares, all of the same order, all pairs of which are ...

is possible. * Alfred Young introduces the

Young tableau In mathematics, a Young tableau (; plural: tableaux) is a combinatorial object useful in representation theory and Schubert calculus. It provides a convenient way to describe the group representations of the symmetric and general linear groups a ...

Medicine

* English surgeon and ophthalmologist Edward Treacher Collins describes the essential traits of

Treacher Collins syndrome Treacher Collins syndrome (TCS) is a genetic disorder characterized by deformities of the ears, eyes, cheekbones, and chin. The degree to which a person is affected, however, may vary from mild to severe. Complications may include breathing prob ...

. * German gynecologist Hermann Johannes Pfannenstiel publishes his description of the "

Pfannenstiel incision A Pfannenstiel incision , Kerr incision, Pfannenstiel-Kerr incision or pubic incision is a type of abdominal surgical incision that allows access to the abdomen. It is used for gynecologic and orthopedics surgeries, and it is the most common me ...

", a transverse incision used in genitourinary surgery that continues to be widely used.

Paleontology

* Barnum Brown finds the first partial skeleton of ''

Tyrannosaurus ''Tyrannosaurus'' is a genus of large theropod dinosaur. The species ''Tyrannosaurus rex'' (''rex'' meaning "king" in Latin), often called ''T. rex'' or colloquially ''T-Rex'', is one of the best represented theropods. ''Tyrannosaurus'' live ...

rex'' in eastern Wyoming. * Dr. James K. Hampson identifies the Island 35 Mastodon skeleton in the

Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it fl ...

Photography

Kodak The Eastman Kodak Company (referred to simply as Kodak ) is an American public company that produces various products related to its historic basis in analogue photography. The company is headquartered in Rochester, New York, and is incorpor ...

introduce their first

Brownie (camera) The Brownie was a series of cameras made by Eastman Kodak. Released in 1900, it introduced the snapshot to the masses. It was a basic cardboard box camera with a simple convex-concave lens that took 2 1/4-inch square pictures on No. 117 roll fi ...

Physics

* April 26 – Guglielmo Marconi patents the

tuned circuit An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together. The circuit can a ...

. * October 19 –

Max Planck Max Karl Ernst Ludwig Planck (, ; 23 April 1858 – 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918. Planck made many substantial contributions to theoretical p ...

produces Planck's law of black-body radiation and

Planck constant The Planck constant, or Planck's constant, is a fundamental physical constant of foundational importance in quantum mechanics. The constant gives the relationship between the energy of a photon and its frequency, and by the mass-energy equivale ...

, marking the birth of quantum physics. * December 7 – Max Planck states his

quantum hypothesis Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, qua ...

. * December 23 –

Reginald Fessenden Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father. During his life he received hundre ...

, experimenting with a high-frequency spark transmitter, successfully transmits speech over a distance of about 1.6 kilometers (one mile), from Cobb Island, Maryland, which appears to have been the first audio radio transmission. *

Gamma ray A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically ...

s discovered by Paul Villard while studying

uranium Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weak ...

decay.

Physiology

Karl Landsteiner Karl Landsteiner (; 14 June 1868 – 26 June 1943) was an Austrian-born American biologist, physician, and immunologist. He distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from ...

makes the first discovery of blood types, identifying the

ABO blood group system The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes. For human blood transfusions, it is the most important of the 43 different blood type (or group) classification system ...

. * Carl Rasch coins the term '

polymorphous light eruption Polymorphous light eruption (PLE) presents with itchy red small bumps on sun-exposed skin, particularly face, neck, forearms and legs. It generally appears 30 minutes to a few hours after sun exposure and may last between one and 14 days. The b ...

'. * Jōkichi Takamine and Keizo Uenaka discover

adrenaline Adrenaline, also known as epinephrine, is a hormone and medication which is involved in regulating visceral functions (e.g., respiration). It appears as a white microcrystalline granule. Adrenaline is normally produced by the adrenal glands an ...

Zoology

* Richard J. Ussher and Robert Warren publish ''The Birds of Ireland''.

Awards

* Copley Medal:

Marcellin Berthelot Pierre Eugène Marcellin Berthelot (; 25 October 1827 – 18 March 1907) was a French chemist and Republican politician noted for the ThomsenBerthelot principle of thermochemistry. He synthesized many organic compounds from inorganic substa ...

Births

* January 2 – Una Ledingham (died 1965), English physician specialising in

diabetes mellitus and pregnancy For pregnant women with diabetes, some particular challenges exist for both mother and child. If the pregnant woman has diabetes as a pre-existing disorder, it can cause early labor, birth defects, and larger than average infants. Therefore, e ...

. * March 4 – Heinrich Willi (died 1971), Swiss pediatrician. * March 8 –

Howard H. Aiken Howard Hathaway Aiken (March 8, 1900 – March 14, 1973) was an American physicist and a pioneer in computing, being the original conceptual designer behind IBM's Harvard Mark I computer. Biography Aiken studied at the University of Wisconsi ...

(died

1973 Events January * January 1 - The United Kingdom, the Republic of Ireland and Denmark 1973 enlargement of the European Communities, enter the European Economic Community, which later becomes the European Union. * January 15 – Vietnam War: ...

), American computing pioneer. * March 19 – Frédéric Joliot (died

1958 Events January * January 1 – The European Economic Community (EEC) comes into being. * January 3 – The West Indies Federation is formed. * January 4 ** Edmund Hillary's Commonwealth Trans-Antarctic Expedition completes the third ...

), French

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 cau ...

. * April 3 –

Albert Ingham Albert Edward Ingham (3 April 1900 – 6 September 1967) was an English mathematician. Early life and education Ingham was born in Northampton. He went to Stafford Grammar School and began his studies at Trinity College, Cambridge in January ...

(died

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

), English

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, structure, space, models, and change. History On ...

. * April 25 –

Wolfgang Pauli Wolfgang Ernst Pauli (; ; 25 April 1900 – 15 December 1958) was an Austrian theoretical physicist and one of the pioneers of quantum physics. In 1945, after having been nominated by Albert Einstein, Pauli received the Nobel Prize in Physics ...

(died

), Austrian-born physicist. * April 26 –

Charles Richter Charles Francis Richter (; April 26, 1900 – September 30, 1985) was an American seismologist and physicist. Richter is most famous as the creator of the Richter magnitude scale, which, until the development of the moment magnitude scale in 19 ...

(died

1985 The year 1985 was designated as the International Youth Year by the United Nations. Events January * January 1 ** The Internet's Domain Name System is created. ** Greenland withdraws from the European Economic Community as a result of a ...

), American geophysicist and inventor. * April 28 –

Jan Oort Jan Hendrik Oort ( or ; 28 April 1900 – 5 November 1992) was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy. His ''New York Times'' obituary ...

(died 1992), Dutch

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 ...

. * May 5 – Helen Redfield (died

1988 File:1988 Events Collage.png, From left, clockwise: The oil platform Piper Alpha explodes and collapses in the North Sea, killing 165 workers; The USS Vincennes (CG-49) mistakenly shoots down Iran Air Flight 655; Australia celebrates its Bicenten ...

), American

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 ...

. * May 6 – Zheng Ji (died 2010), Chinese biochemist and

nutritionist A nutritionist is a person who advises others on matters of food and nutrition and their impacts on health. Some people specialize in particular areas, such as sports nutrition, public health, or animal nutrition, among other disciplines. In many ...

. * May 10 –

Cecilia Payne-Gaposchkin Cecilia Payne-Gaposchkin (born Cecilia Helena Payne; – ) was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Her groundbreaking conclus ...

(died

1979 Events January * January 1 ** United Nations Secretary-General Kurt Waldheim heralds the start of the '' International Year of the Child''. Many musicians donate to the '' Music for UNICEF Concert'' fund, among them ABBA, who write the so ...

), English-born American astronomer and astrophysicist. * May 22 –

Honor Fell Dame Honor Bridget Fell, DBE, FRS (22 May 1900 – 22 April 1986) was a British scientist and zoologist. Her contributions to science included the development of experimental methods in organ culture, tissue culture, and cell biology. Early l ...

(died

1986 The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 **Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. **Spain and Portugal enter ...

), English biologist. * June 24 –

Wilhelm Cauer Wilhelm Cauer (24 June 1900 – 22 April 1945) was a German mathematician and scientist. He is most noted for his work on the analysis and synthesis of electrical filters and his work marked the beginning of the field of network synthesis. Prio ...

(killed

1945 1945 marked the end of World War II and the fall of Nazi Germany and the Empire of Japan. It is also the only year in which Nuclear weapon, nuclear weapons Atomic bombings of Hiroshima and Nagasaki, have been used in combat. Events Below, ...

), German mathematician and

electronic engineer Electronics engineering is a sub-discipline of electrical engineering which emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current ...

. * June 25 – Philip D'Arcy Hart (died 2006), English medical researcher, pioneer in tuberculosis treatment. * June 30 –

James Stagg Group Captain James Martin Stagg, (30 June 1900 – 23 June 1975) was a Met Office meteorologist attached to the Royal Air Force during the Second World War who notably persuaded General Dwight D. Eisenhower to change the date of the Allied ...

(died

1975 It was also declared the ''International Women's Year'' by the United Nations and the European Architectural Heritage Year by the Council of Europe. Events January * January 1 - Watergate scandal (United States): John N. Mitchell, H. R. ...

) Scottish

meteorologist A meteorologist is a scientist who studies and works in the field of meteorology aiming to understand or predict Earth's atmospheric phenomena including the weather. Those who study meteorological phenomena are meteorologists in research, while t ...

. * July 9 – Frances McConnell-Mills, born Frances Mary McConnell (died

), American

toxicologist Toxicology is a scientific discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating expo ...

. * August 25 –

Hans Adolf Krebs Sir Hans Adolf Krebs, FRS (, ; 25 August 1900 – 22 November 1981) was a German-born British biologist, physician and biochemist. He was a pioneer scientist in the study of cellular respiration, a biochemical process in living cells that ex ...

(died

1981 Events January * January 1 ** Greece enters the European Economic Community, predecessor of the European Union. ** Palau becomes a self-governing territory. * January 10 – Salvadoran Civil War: The FMLN launches its first major offensiv ...

), German-born medical doctor and biochemist. * August 26 –

Hellmuth Walter Hellmuth Walter (26 August 1900 – 16 December 1980) was a German engineer who pioneered research into rocket engines and gas turbines. His most noteworthy contributions were rocket motors for the Messerschmitt Me 163 and Bachem Ba 349 interce ...

(died 1980), German-born

engineer Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the limit ...

and inventor. * October 2 –

Isabella Forshall Isabella Forshall FRCSE (2 October 1900 – 10 August 1989) was an English paediatric surgeon who played a leading role in the development of the speciality of paediatric surgery in the United Kingdom. She took a particular interest in neonat ...

(died

1989 File:1989 Events Collage.png, From left, clockwise: The Cypress structure collapses as a result of the 1989 Loma Prieta earthquake, killing motorists below; The proposal document for the World Wide Web is submitted; The Exxon Valdez oil tanker runs ...

), English

pediatric surgeon Pediatric surgery is a subspecialty of surgery involving the surgery of fetuses, infants, children, adolescents, and young adults. History Pediatric surgery arose in the middle of the 1879 century as the surgical care of birth defects required ...

. * November 5 –

Ethelwynn Trewavas Ethelwynn Trewavas (5 November 1900 – 16 August 1993) was an ichthyologist at the British Museum of Natural History. She was known for her work on the families Cichlidae and Sciaenidae. She worked with Charles Tate Regan, another ichthyo ...

(died

1993 File:1993 Events Collage.png, From left, clockwise: The Oslo I Accord is signed in an attempt to resolve the Israeli–Palestinian conflict; The Russian White House is shelled during the 1993 Russian constitutional crisis; Czechoslovakia is peacefu ...

), English ichthyologist. * December 9 – Joseph Needham (died

1995 File:1995 Events Collage V2.png, From left, clockwise: O.J. Simpson is acquitted of the murders of Nicole Brown Simpson and Ronald Goldman from the year prior in "The Trial of the Century" in the United States; The Great Hanshin earthquake str ...

), English biochemist and writer on the history of science and technology in China. * December 12 –

Mária Telkes Mária Telkes (December 12, 1900 – December 2, 1995) was a Hungarian-American biophysicist and inventor who worked on solar energy technologies. She moved to the United States in 1925 to work as a biophysicist. She became an American citizen i ...

(died

), Hungarian-American scientist and inventor. * December 17 –

Mary Cartwright Dame Mary Lucy Cartwright, (17 December 1900 – 3 April 1998) was a British mathematician. She was one of the pioneers of what would later become known as chaos theory. Along with J. E. Littlewood, Cartwright saw many solutions to a problem ...

(died

1998 1998 was designated as the ''International Year of the Ocean''. Events January * January 6 – The ''Lunar Prospector'' spacecraft is launched into orbit around the Moon, and later finds evidence for frozen water, in soil in permanently s ...

), English mathematician, one of the first people to analyze a dynamical system with chaos. *

Robina Addis Robina Scott Addis, (1900–1986) was one of the earliest professional psychiatric social workers in Britain. Addis was not always interested in Social Work. Originally, she read History at the University of Oxford, but after two years she was f ...

(died

), English pioneering professional psychiatric social worker. * Ernest Gibbins (killed

1942 Events Below, the events of World War II have the "WWII" prefix. January * January 1 – WWII: The Declaration by United Nations is signed by China, the United Kingdom, the United States, the Soviet Union, and 22 other nations, in w ...

), English entomologist.

Deaths

* January 13 –

Peter Waage Peter Waage (29 June 1833 – 13 January 1900) was a Norwegian chemist and professor of chemistry at the University of Kristiania. Along with his brother-in-law Cato Maximilian Guldberg, he co-discovered and developed the law of mass action ...

(born 1833), Norwegian

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 t ...

. * January 22 – David E. Hughes (born

1831 Events January–March * January 1 – William Lloyd Garrison begins publishing '' The Liberator'', an anti- slavery newspaper, in Boston, Massachusetts. * January 10 – Japanese department store, Takashimaya in Ky ...

), British-American inventor. * March 6 –

Gottlieb Daimler Gottlieb Wilhelm Daimler (; 17 March 1834 – 6 March 1900) was a German engineer, industrial designer and industrialist born in Schorndorf ( Kingdom of Württemberg, a federal state of the German Confederation), in what is now Germany. He w ...

(born

1834 Events January–March * January – The Wilmington and Raleigh Railroad is chartered in Wilmington, North Carolina. * January 1 – Zollverein (Germany): Customs charges are abolished at borders within its member states. * January 3 � ...

), German

, automotive pioneer. * March 10 –

George James Symons George James Symons FRS (6 August 1838 – 10 March 1900) was a British meteorologist who founded and managed the ''British Rainfall Organisation'', an unusually dense and widely distributed network of rainfall data collection sites throughout ...

(born 1838), English

. * April 1 –

George Jackson Mivart St. George Jackson Mivart (30 November 1827 – 1 April 1900) was an English biologist. He is famous for starting as an ardent believer in natural selection who later became one of its fiercest critics. Mivart attempted to reconcile D ...

(born

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, be ...

), English

biologist A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological inter ...

. * August 4 –

Étienne Lenoir Jean Joseph Étienne Lenoir, also known as Jean J. Lenoir (12 January 1822 – 4 August 1900), was a Belgian-French engineer who developed the internal combustion engine in 1858. Prior designs for such engines were patented as early as 1807 ( ...

(born

1822 Events January–March * January 1 – The Greek Constitution of 1822 is adopted by the First National Assembly at Epidaurus. *January 3 - The famous French explorer, Aimé Bonpland, is made prisoner in Paraguay accused of being a spy. ...

), Belgian

mechanical engineer Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of ...

. * August 31 –

John Bennet Lawes Sir John Bennet Lawes, 1st Baronet, FRS (28 December 1814 – 31 August 1900) was an English entrepreneur and agricultural scientist. He founded an experimental farm at his home at Rothamsted Manor that eventually became Rothamsted Research, ...

(born

1814 Events January * January 1 – War of the Sixth Coalition – The Royal Prussian Army led by Gebhard Leberecht von Blücher crosses the Rhine. * January 3 ** War of the Sixth Coalition – Siege of Cattaro: French garrison ...

), English agricultural scientist. * October 16 –

Henry Acland Sir Henry Wentworth Dyke Acland, 1st Baronet, (23 August 181516 October 1900) was an English physician and educator. Life Henry Acland was born in Killerton, Exeter, the fourth son of Sir Thomas Acland and Lydia Elizabeth Hoare, and educate ...

(born 1815), English

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 ...

. * October 29 –

Bruno Abakanowicz Bruno Abdank-Abakanowicz (6 October 1852 – 29 August 1900) was a Polish mathematician, inventor, and electrical engineer. Life Abakanowicz was born in 1852 in the Russian Empire (now Lithuania). After graduating from the Riga Technical Univ ...

(born

1852 Events January–March * January 14 – President Louis-Napoléon Bonaparte proclaims a new constitution for the French Second Republic. * January 15 – Nine men representing various Jewish charitable organizations come tog ...

), Polish mathematician, inventor and electrical engineer.

References

{{reflist 19th century in science 1900s in science