2013, Scientists
cloned a cell from a human baby with a rare genetic disorder. This created a
source of embryonic stem cells that could be used in treatment.
20/5/2010, Craig Venter announced the creation of the
world�s first synthetic
organism.
3/2/2005, Ernst Mayr, evolutionary
biologist, died (born 5/7/1904)
11/8/2004, The first licences
for the cloning of human embryos were granted in Britain.
28/5/2003, The first horse cloned by Italian scientists, Prometea,
was born
14/4/2003, The Human Genome Project, to completely map the human genome,
was completed.
9/3/2001, Italian gynaecologist Severino
Antinori announced his intention to clone a human. This led to calls
for an international ban on such research.
15/2/2001, An initial
version of the Human
Genome Sequence was released.������
23/7/1998, A team of
scientists at the University of Hawaii, led by Ryuzo Yanagimachi, announced they had
produced three generations of cloned mice.
24/2/1997. The cloned
sheep, Dolly, was presented to the public. She had been cloned from a
single cell of her mother at the Royal Institute in Edinburgh. There was moral
panic about the possibility of cloning humans, but some saw it as a useful way to create organs for transplant. Lamb
6LL3 was named after Dolly Parton.
The animal died prematurely in February 2003.
18/3/1988, Percy Thrower, horticulturalist, died.
24/1/1988,
Biochemist Charles Glen
King, who first isolated vitamin C, died in Westchester,
Pennsylvania.
1987, Two calves, called Fusion
and Copy, were successfully cloned from embryonic cells.
5/1/1987, Genetic
fingerprinting was first used to catch a murderer, Colin Pitchfork. Police asked
all men in Narborough, Leicestershire, to take DNA tests after two 15 year old
girls were killed.
1984,
An egg cell emptied of its nucleus was fused with a cell from a lamb embryo,
resulting in the birth of three live cloned lambs.
18/4/1984, Kenneth S Cole,
US biophysicist, died.
22/5/1983, Albert Claude,
Belgian biologist, died.
10/3/1983, Ulf von Euler,
Swedish biochemist, died.
15/8/1982, Hugo Theorell,
Swedish biochemist, died.
22/11/1981, Hans Krebs, British biochemist, died aged 81.
9/3/1980, Max Delbruck, German-US microbiologist, died
in Pasadena, California.
6/8/1979, Feodor Lynen, German biochemist, died in
Munich.
11/12/1978, Vincent du Vigneaud, US biochemist, dies in
Scarsdale, New York, USA.
1977, Genetech began
to synthesis medicines by use of recombinant DNA.
20/11/1976, Trofim Denisovich Lysenko, Soviet biologist,
died in Kiev, Ukraine.
31/5/1976, J L Monod, French biochemist, died aged 66.
24/4/1976, Henrik Dam, Danish biochemist, died aged 81.
1975, The technique of cellular transfer of nuclear material was used to
succesfuly transfer material in mammalian cells.
5/11/1975, Edward Lawrie
Tatum, US biochemist, died in New York City, USA.
1973, Stanley
Cohen (Stanford University) and Herbert Boyer (University of California)
inserted recombinant DNA into a bacteria which then cloned this new DNA. This
was the start of genetic engineering.
1972, Paul
Berg, st Stanford University, combined the DNA from two different
viruses.
1970, At John Hopkins University, Hamilton Smith and Daniel Nathans discovered
restriction enzymes, chemical scissors that snipped RNA molecules.
1/8/1970, Otto Heinrich
Warburg, German biochemist, died in Berlin-Dahlem.
5/4/1970, Alfred Henry
Sturtevant, US geneticist, died in Pasadena, California.
16/2/1970, Francis Peyton
Rous, who discovered that viruses can cause cancer, died in New York
City, USA.
1965, RNA synthesis of protein was achieved in a test tube; the code of
three bases for each amino acid was discovered.
4/6/1962, Charles William
Beebe, US naturalist, died at Simla Research Station, Trinidad.
23/1/1959, Wilhelm Ludwig,
zoologist and geneticist, died in Leipzig (born 20/10/1901).
26/10/1957, Gerty Theresa
Radnitz Cori, Czech-US biochemist, died in St Louis, Missouri.
7/10/1955, Henry Clapp
Sherman, US biochemist, died in Rensselaer, New York, USA.
8/1/1955, Sir Arthur
Keith, British anthropologist, died.
16/11/1954, Albert Francis
Blakeslee, US botanist, died in Northampton, Massachusetts.
25/4/1953, James Watson and Francis Crick described the
double-helix structure of DNA in
Nature magazine.
1952, A tadpole was cloned using
the new technique of transfer of cellular nuclearnaterial to a new cell.
16/5/1947, Sir Frederick Gowland Hopkins, English
biochemist, died in Cambridge.
17/4/1946, George Kohler, German biologist, was born
(died 1995).
4/12/1945, T H Morgan, US biologist, died aged 79.
1944, O A T Overy of Rockerfeller University,
working with the pneumonia bacterium, established that genes were made from
DNA.
26/1/1943, Nikolay Ivanovich Vavilov, Russian botanist,
died as a result of mistreatment by Soviet prison guards. He had been
imprisoned for opposing the views of Trofim Lysenko, who held that acquired traits
could be inherited.
22/12/1942, Franz Boas, anthropologist, born 9/7/1858 in
Minden, Germany, died in New York.
3/3/1939, Edmund Beecher Wilson, US zoologist, died in
New York City.
7/3/1938, David Baltimore, US biologist,
was born.
19/7/1936, Herbert Boyer, biotechnologist, was born.
27/2/1936, Death of Ivan Pavlov (born 14/9/1849 in Ryazan,
Russia). He is famous for his work on conditioned reflexes in dogs.
20/8/1935, In the US, H McLean announced the isolation of Vitamin E.
15/3/1934, Davidson Black, Canadian anthropologist, died
in Beijing, China.
19/5/1933,� Edward de Bono,
who developed the concept of lateral thinking, was born.
1932, In Germany the biochemist Hans Krebs
described the citric acid cycle in cells, where sugars, fats and proteins are
converted into carbon dioxide, water and energy.
23/8/1931, Hamilton Othaniel Smith was born in New York
City, USA. In 1970 he discovered the first �restriction enzyme�, one that cuts
DNA at a specific base juncture.
20/3/1931, Ilya Ivanovich Ivanov, Russian biologist, died
in Alma Ata, USSR.
30/6/1926, Paul Berg was born in New York City, USA. In
1974 he recommended a halt to genetic engineering experiments.
7/4/1925, Charles Yanofsky was born in New York City,
USA. In 1967 he helped crack the DNA code for proteins.
9/1/1922, Hans Gobind Khorana, biochemist, was born in
Raipur, India.
1921, The first polygraph (lie
detector) was built, by John Larson of the Berkely Police Department, California.
5/10/1921, Mahlon Bush Hoagland, US biologist, was born
in Boston, Massachusetts. In 1955 he established the role of transfer-RNA.
20/6/1920, Dmitri Iosifovich, Russian botanist, died.
17/6/1920, Francois Jacob was born in Nancy, France. In
1960, along with Jacques Monod (born 9/2/1910, Paris, France), he proved in
1960 that messenger RNA exists.
31/1/1920, Wilhelm Pfeffer, German botanist, died in
Kassel, Hesse.
28/8/1919, Sir Godfrey Hounsfield, who invented the EMI
scanner and winner of the Nobel prize for psychology in 1979, was born.
8/6/1918, Francis H Crick was born in Northampton, UK.
In 1953, along with James Dewey Watson (born Chicago, USA,
6/4/1928) he developed the double-helix model for DNA.
2/10/1917, Rene de Duve, cytologist, was born in Thames
Ditton, England. In 1974 he was awarded the Nobel Prize for electron microscopy
and cell structure studies.
24/3/1917, John Cowdery Kendrew was born in Oxford,
England. In 1960 he determined the molecular structure of myoglobain, similar
to haemoglobin.
1915, The enzyme thyroxine was
first isolated from thyroid gland tissue.
1913, Richard Willstatter discovered the composition
of chlorophyll. In the US, E McCollum isolated vitamin A.
1912, Casimir Funk of the Pasteur Institute, Paris,
noticed that people who ate unpolished rice were less susceptible to beri-beri.
He found that the substance responsible for preventing beri-beri was an amine,
a chemical that contained nitrogen, so he called this a vital amine, or vitamine. It was later known as vitamin B1, or
thiamine. He went on to doscover other such �vital amines�, including B3
(niacin). Later it was discovered that niot all such vital amines contained
nitrogen, for example vitamin C, so the final �e� was dropped to lessen the
link to amines.
19/11/1912,
Rumanian-US physiologist George Emil Palade was born in Iasi, Rumania.
In 1956 he discovered the that the small bodies within cells now known as
ribosomes, are mostly RNA. It was soon afterwards found that this was where the
cell manufactures proteins.
24/3/1912,
Biochemist Sidney
Walter Fox was born in Los Angeles, California.
8/4/1911, Melvin Calvin
was born in St Paul, Minnesota, USA. In 1945 he investigated photosynthesis in
plants using carbon-14.
6/4/1911, Feodor Lynen,
medical researcher, was born in Munich., Germany.
28/3/1911, Herve de
Toulgoet, French entomologist, was born (died 14/9/2009)
9/2/1910, J L Monod, French biochemist, was born (died
1976).
18/8/1908, English plant pathologist Frederick Charles Bawden was
born in North Tawton.
11/8/1905, Austrian-American biochemist Erwin Chargaff was born in
Czernowitz. He demonstrated in the 1940s that for DNA the number of adenine and
thymine bases, and the number of cytosine and guanine bases, were equal. This
was an important clue to the structure of DNA.
24/3/1903, Adolf Friedrich Butenandt was born in
Bremerhaven, Germany. In 1929 he isolated estrone, a female sex hormone.
1902, A salamander became the
first vertebrate to be �cloned� using the technique of splitting a two-celled
embryo.
18/5/1901, Vincent du Vigneaud, US biochemist, was born.
28/2/1901, Dr Linus Pauling, American biochemist and
twice winner of the Nobel Prize, was born in Portland, Oregon.
30/10/1900, Physiologist Ragnar Arthur Granit was born in Helsinki.
25/1/1900, Theodosius Dobzhansky, Russian-American
biologist who studied population genetics, was born in Nemtrov, Russia.
21/1/1900, Bernhard Rensch, German biologist, was born in
Thale (died 1990)
1899, The �lock and key�
mechanism was proposed as to how enzymes work.
25/12/1899, Elliott Coues, naturalist, died (born
9/9/1842).
24/11/1898, George James Allman, British biologist, died
in Parkstone, Dorset (born 1812).
25/9/1898, Louis Laurent Gabriel de Mortillet, French
anthropologist, died at St Germain en Laye.
25/6/1898, German botanist Ferdinand Julius Cohn died in
Breslau (now Wroclaw, Poland).
19/4/1898, Biologist Charles Naudin died.
20/7/1897, Tadeusz Reichstein� was born in Wloclawek, Poland. In 1933 he succeeded in
synthesising ascorbic acid (vitamin C).
8/9/1894, Hermann Ludwig von Helmholtz died (born
31/8.1821) He researched the relationship between nerve cells and nerve fibres.
13/11/1893, Adelbert Edward Doisy, US biochemist, was born
in Hume, Illinois.
5/11/1892, John Haldane, pioneer in genetic research, was born.
16/2/1892, Henry Bates, English naturalist, died
16/2/1892 (born in Leicester 8/;2/1825).
20/1/1890, Boris Mikhailovich Kozo-Polyansky, Russian
biologist, was born (died 21/4/1957).
21/10/1889, John Ball, Irish politician and naturalist,
died in London
(born in Dublin
20/8/1818).
30/7/1889, Miles Berkeley, English botanist, died in
Sibbertoft (born in Northamptonshire 1/4/1803).
19/1/1888, Heinrich DeBary, German botanist, died (born
26/1/1831).
25/11/1887, Russian botanist Nikolay Vavilov was born in
Moscow.
19/11/1887, James Batcheller Sumner was born in Canton,
Massachusetts, USA. In 1926 he crystallised urea, the first enzyme to be
crystallised, and established that is was a protein.
19/8/1887, Spencer Baird, US naturalist, died in
Massachusetts (born in Reading, Pennsylvania 3/2/1823).
11/5/1887, Jean Baptiste Dieudonne Boussingault died in
Paris. In 1840 he proved that plants obtain their nitrogen from nitrates in the
soil.
10/8/1886, George Busk, zoologist, died (born 12/8/1807)
1885,
Two-celled seas urchins were split into single cells, which developed into the
first pair of genetically-identical �cloned� organisms.
19/11/1885, William
Benjamin Carpenter, English naturalist, died (born 29/11/1813).
10/9/1884, George Bentham,
English
botanist, died (born near Portsmouth 22/9/1800).
12/4/1884, Otto Fritz Meyerhof,
German
biochemist, was born in Hanover. He studied the conversion of glycogen to
lactic acid during muscular exertion.
29/7/1882, Andrew Adams, Scottish naturalist and
palaeontologist, died (born 21/3/1827).
19/7/1882, Embryologist Francis Balfour died in Switzerland (born in
Edinburgh 10/11/1851).
Mendel, Heredity
6/1/1884, Gregor Mendel, Augustine monk and botanist who
pioneered the study of genetics, died in Brunn, Austria, aged 62.
1869, Gregor Mendel�s experiments with
pea plants helped establish the mechanisms of heredity.
22/7/1822, Gregor Mendel, Austrian monk and botanist who
discovered the principles of modern genetics, was born at Heinzendorf near Odrau, in
Austrian Silesia.
Charles
Darwin
19/4/1882. Charles
Darwin, who developed his theory of evolution, died aged 73 near
Orpington, Kent. He was buried in Westminster Abbey.
24/11/1859, Charles Darwin, born 12/2/1809, published The Origin of the Species.
1/7/1858, Charles Darwin
first presented his theory of evolution, to the Linnean Society.
18/6/1858, Charles Darwin received a letter from Alfred Russell
Wallace, who had formulated a theory of evolution through survival of the
fittest. This was close to Darwin�s ideas in his as yet unpublished Origin of the Species.
1/7/1838, Charles Darwin presented a paper on his evolutionary theory.
2/10/1836, Charles Darwin arrived back in England nearly
five years after he left on HMS Beagle.
15/9/1835, Charles Darwin arrived on the Galapagos
Islands (Ecuador).
27/12/1831, The Admiralty survey ship The Beagle
left Plymouth with Charles Darwin on
board on a scientific voyage around the world. This led to Darwin�s controversial book, The
Origin of the Species. Darwin was inspired by Professor Henslow (1796-1861), a
renowned mineralogist at Cambridge, 13 years older than Darwin, who was elected
unopposed to the Chair of Botany at Cambridge when that position fell vacant. Henslow
supported �evolutionary� theories, although retaining a strong religious faith.
8/2/1825, Henry Walter Bates was born in Leicester, England.
His theory of insect mimicry, developed during an 11-year stay in South
America, contributed to the acceptance of Darwin�s Theory of Evolution.
16/2/1822, Francis Galton, a cousin of Charles Darwin,
founder of a new science called eugenics,
was born in Birmingham, England. Among his ideas was the systematic creation of
a superior race of human beings, an idea later adopted by Hitler.
12/2/1809, Charles Darwin was born.� His father, Robert Darwin, was a doctor and
financier, and his mother, Susannah Darwin, was the daughter of pottery
magnate Josiah
Wedgewood.
11/1/1882, Theodore Schwann, German physiologist, was
born in Cologne.
19/12/1880, Francis Buckland, zoologist, died (born
17/12/1826)
28/11/1876, Karl Baer, embryologist, died in Dorpat (born
29/2/1719 in Piep, Estonia)
27/6/1876, Christian Ehrenberg, German naturalist, was
born (died 27/6/1876).
4/7/1873, Johann Kaup, German naturalist, died (born
10/4/1803)
19/2/1873, John Reed Swanton, anthropologist and
ethnologist, was born.
15/2/1873, Hans von Euler Chelpin, Swedish, was born in
Augsburg, Germany. In 1929 he, along with Sir Arthur Harden, were awarded the Nobel
Prize for their research into sugar fermentation.
31/5/1870, Jean Claparede, Swiss naturalist, died (born
24/4/1832).
20/3/1886, Thomas Cobbold, helminthologist, died (born
1828).
13/12/1868, Carl Martius, German botanist, died (born
17/4/1794).
25/6/1866, Thomas Hunt Morgan was born in Lexington,
Kentucky. In 1907 he began his work
with fruit flies, drosophila melanogaster, to establish the laws of heredity.
9/11/1864, Russian biologist Dmitri Ivanovsky was born in
Gdov. In 1892 he proved the existence of viruses.
24/11/1863, Edwin Conklin, US biologist, was born in Ohio
(died 20/11/1952).
1862, Haemoglobin
was first crystallised.
10/6/1858, Robert Brown, botanist, died (born
21/12/1773).
4/5/1858, Aime Bonpland, botanist, died (born in La
Rochelle 22/8/1773).
1856, Claude Bernard discovered that
the liver stores glucose as glycogen, to be converted back to glucose when the
body needs energy.
3/11/1854, Jokichi Takamine was born in Takaoka, Japan.
In 1901 he artificially synthesised adrenaline.
16/1/1854, Charles Gaudichaud, French botanist, died
(born 4/9/1789).
29/6/1853, Adrien de Jussieu, natiuralist, died (born
23/12/1797).
15/10/1852, Friedrich Ludwig Jahn, founder of the
gymnastic movement (Turnverein) in Germany, died at Freyburg aged 74.
10/11/1851, Embryologist Francis Balfour was born in Edinburgh (died in
Switzerland 19/7/1882).
27/1/1851, John James Audubon, US naturalist, died in New
York.
1/5/1850, Henri Blainville, French naturalist, died in
Paris (born near Dieppe 12/9/1777).
4/2/1847, Rene Dutrochet, physiologist, died (born
14/11/1776)
23/12/1846, Jean Boiry, French naturalist, died.
9/9/1842, Elliott Coues, naturalist, was born (died
25/12/1899).
9/9/1841, Augustin Candolle, Swiss botanist (born 4/2/1778)
died.
22/1/1840, Anthropologist Johann Blumenbach died in
Gottingen, Saxony, Germany.
1837, The significance of chlorophyll to plant photosynthesis was
realised by the French scientist Rene Joachim Henri Dutrochet, 61.
1/2/1837, Edward Donovan, English naturalist, died (born
1768).
17/9/1836, Antoine de Jussieu, naturalist, died (born
12/4/1748).
1833, Anselme Payen discovered the
first enzyme,
diastase. It speeds the conversion of starch to sugar.
16/11/1833, Rene Desfontaines, French botanist, died (born
14/2/1750).
19/12/1832, Sir John Kirk, British naturalist, was born,
13/5/1832, Georges Cuvier, French naturalist, died (born
23/8/1769).
24/4/1832, Jean Claparede, Swiss naturalist, was born
(died 31/5/1870).
26/1/1831, Heinrich DeBary, German botanist, was born (died
19/1/1888).
18/12/1829, Jean Baptiste Pierre Antoine de Monet Lamarck,
French scientist, died aged 75. He believed that extra usage of� some feature of an animal strengthened it,
and this enhancement could be passed down the generations.
10/7/1828, Louis Bosc, French naturalist, died in Paris
(born in Paris 29/1/1759).
24/1/1828, German botanist Ferdinand Julius Cohn was born
in Breslau (now Wroclaw, Poland). In 1850 he showed that plant and animal
cytoplasm were essentially the same.
21/3/1827, Andrew Adams, Scottish naturalist and
palaeontologist, was born (died 29/7/1882).
17/12/1826, Francis Buckland, zoologist, was born
(died19/12/1880).
4/5/1825, Thomas Huxley, English biologist, was born
(died 29/6/1895).
1824, English physician Peter Mark
Roger discovered that the human eye can retain an image for a fraction of a second
after it has seen it. This became the basis for converting a rapid
series of still images into an apparently animated film which the brain sees as
continuous motion.
3/2/1823, Spencer Baird, US naturalist, was born in
Reading, Pennsylvania (died in Massachusetts 19/8/1887).
31/8/1821, Hermann Ludwig von Helmholtz was born in
Potsdam, Prussia. He researched the relationship between nerve cells and nerve
fibres.
29/8/1821, Anthropologist Louis Laurent Mortillet was born
in Meylan, Isere, France. He subdivided the Palaeolithic (older Stone Age) into
separate periods, based on the tools in use at the time.
19/6/1820, Sir Joseph Banks, English botanist who accompanied Cook on his voyage round the world in The
Endeavour, died aged 77.
1819, Naturalist Henri Braconnot,
born in Commercy, France, on 29/5/1781, obtained glucose from
sawdust, linen and bark. This proved that plant materials such as cellulose
were made up from this sugar.
13.8/1819, Erik Acharius, Swedish botanist (born
28/4/1753) died 13/8/1819 in Wadstena.
7/11/1818, Emil Dobois-Reymond, physiologist, was born
(died 26/11/1896).
20/8/1818, John Ball, Irish politician and naturalist,
was born in Dublin (died in London 21/10/1889).
1817, Chlorophyll was discovered by Pierre Pelletier (born in Paris
22/3/178, and Joseph Benaime Caventou (born St Omer, 30/6/1795).
6/7/1817, Rudolf Albert von Kolliker was born in Zurich,
Switzerland. In 1844 he showed that the egg is a cell and all cells in the
organism originate by divisions from the egg cell.
30/6/1817,� Sir Joseph
Hooker, English botanist, was born.
19/12/1815, Benjamin Barton, US naturalist, died in
Philadelphia (born 1766).
5/3/1815, Friedrich Mesmer, German doctor who developed
the theory of animal
magnetism, or mesmerism, for curing diseases, died aged 80.
29/10/1813, William Benjamin Carpenter, English
naturalist, was born (died 19/11/1885).
12/7/1813, Claude Bernard, French physiologist, was born
near Villefranche (died in Paris 10/2/1878).
18/11/1810, Botanist Asa Gray was born in Sauquoit, New York, USA.
8/7/1810, Gabriel Gustav Valentin, Swiss-German
physiologist, was born in Breslau (Wroclaw, now Poland). Along with Jan
Purkinje, he discovered, in 1834, the role of the cilia in moving the ovum
along the oviduct.
12/8/1807, George Busk, zoologist, was born (died
10/8/1886).
17/1/1807, Pierre Broussonet, French naturalist, died
(born 28/2/1761).
3/8/1806, Michel Adanson, French naturalist, died in
Paris (born 7/4/1727 in Aix en Provence).
23/6/1806, Mathurin Brisson, French zoologist, died (born
30/4/1723).
1/4/1803, Miles Berkeley, English botanist, was born in
Northamptonshire (died in Sibbertoft 30/7/1889).
1804, The Royal Horticultural Society was founded in London, UK.
10/4/1803, Easter Sunday; Johann Kaup, German naturalist, was
born (died 4/7/1873)
10/8/1802, Franz Aepinus, German natural philosopher, died
10/8/1802 in Dorpat (born 13/12/1724 in Rostock).
22/7/1802, Marie Bichat, French anatomist, died (born in
Jura 14/11/1771).
2/2/1802, Jean Baptiste Dieudonne Boussingault was born
in Paris. In 1840 he proved that plants obtain their nitrogen from nitrates in
the soil.
14/7/1801, German physiologist Johannes Peter Muller was born
in Koblenz. He researched the action of the nerves.
14/1/1801, Adolphe Brongniart, French botanist, was born
(died 18/2/1876).
22/9/1800, George Bentham, English botanist, was born
near Portsmouth (died 10/9/1884).
14/3/1800, Daines Barrington, English naturalist (born
1727) died.
6/8/1799, Mark Bloch, German naturalist, died
4/12/1798. Luigi Galvani, Italian scientist who researched animal electricity,
died.
23/12/1797, Adrien de Jussieu, natiuralist, was born (died
29/6/1853).
27/4/1797, Jean Audouin, naturalist, was born in Paris
(died in Paris 9/11/1841).
19/4/1795, Christian Ehrenberg, German naturalist, was
born (died 27/6/1876).
24/7/1794, Russian zoologist Christian Pander was born in
Riga. He studied the development of the chick embryo.
17/4/1794, Carl Martius, German botanist, was born (died
13/12/1868).
22/2/1794, German physiologist Kaspar Wolff died in St
Petersburg, Russia.
20/5/1793, Charles Bonnet, Swiss naturalist, died near
Geneva (born in Geneva 13/3/1720).
2/2/1793, William Aiton, Scottish
botanist, born 1731, died.
28/2/1792, Russian
biologist Karl
Ernst von Baer was born in Peip, Estonia, In 1827 he reported his
discovery that humans and other mammals developed from internal eggs.
4/9/1789, Charles Gaudichaud, French
botanist, was born (died 16/1/1854).
15/4/1788, George
Buffon, French naturalist, died (born 7/9/1707).
22/3/1788, Pierre Pelletier was born in Paris. In 1817 he
jointly discovered chlorophyll with Joseph Bienaime Caventou (born 30/6/1795 in
Saint Omer, France).
8/7/1784, Torbern Bergman, Swedish naturalist, died in
Medevi (born in Katrineberg 20/3/1735).
13/8/1782, Henri Duhamel, French botanist, died (born
1700).
5/5/1780, John James Audubon, US naturalist, was born
(died 27/1/1851).
1779,
Lazzaro
Spallanzani studied animal reproduction, proving that for
fertilisation to take place the sperm must make physical contact with the egg,
1779,
Jan
Ingenhousz, in Experiments on
vegetables, concluded that sunlight is essential for production of oxygen
by leaves. He discovered two separate respiratory cycles in plants; in the day,
carbon disoxide is absorbed and oxygen released; at night the process reverses.
The exact nature of the gases involved was clear with Lavoisier�s discoveries.
11/4/1779, Joseph
de Jussieu, naturalist, died (born 3/9/1704)).
4/2/1778, Augustin Candolle,
Swiss
botanist (died 9/9/1841) was born.
10/1/1778, Carl Linnaeus,
the Swedish
botanist who devised the modern
system of naming and classifying plants, died in
Uppsala.
12/9/1777, Henri Blainville,
French naturalist, was born near Dieppe (died in Paris 1/5/1850).
14/11/1776, Rene Dutrochet,
physiologist, was born (died 4/2/1847).
21/12/1773, Robert Brown,
botanist, was born (died 10/6/1858).
22/8/1773, Aime Bonpland,
botanist, was born in La Rochelle (died 4/5/1858).
14/11/1771, Marie Bichat,
French anatomist, was born in Jura (died 22/7/1802).
17/8/1771, The Birmingham scientist Joseph Priestley discovered that oxygen is released
from growing plants.
14/9/1769, Birth of Baron von Humboldt, German scientist who explored
Central and South America, and founded the science of ecology.
23/8/1769, Georges Cuvier, French naturalist, was born
(died 13/5/1832).
29/1/1768, John Martyn, English botanist, died (born
12/9/1699).
1761, The first vetinary school
opened, in Lyons, France.
28/2/1761, Pierre Broussonet, French naturalist, was born
(died 17/1/1807).
29/1/1759, Louis Bosc, French naturalist, was born in
Paris (died in Paris 10/7/1828).
10/10/1757, Erik Acharius, Swedish botanist (died 13/8/1819 in
Wadstena) was born.
11/5/1752, Johann Blumenbach, German physiologist, was born in
Gotha (died in Gottingen 22/1/1840).
2/7/1750, Francois Huber, naturalist, was born (died
1831).
14/2/1750, Rene Desfontaines, French botanist, was born
(died 16/11/1833).
12/4/1748, Antoine de Jussieu, naturalist, was born (died
17/9/1836).
2/4/1747, Johann Dillen, English botanist, died (born
1684).
1/8/1744, The Chevalier de Lamarck, naturalist, was born.
13/2/1743, Sir Joseph Banks, naturalist, was born in
Argyle Street, London
(died in Isleworth, 19/6/1820),
9/9/1737, Luigi Galvani, Italian scientist and anatomist, was
born in Bologna.
1736, Linnaeus
classified the plant species.
27/9/1735, Peter Artedi, Swedish naturalist, died in Amsterdam
(born 22/2/1705 in Angermania, Sweden).
20/3/1735, Torbern Bergman, Swedish naturalist, was born
in Katrineberg (died in Medevi 8/7/1784).
23/5/1734, Franz Anton Mesmer, Austrian doctor and
founder of Mesmerism, was born near
Constance. He was the son of a gamekeeper.
7/4/1727, Michel Adanson, French naturalist, was born in
Aix en Provence (died 3/8/1806 in Paris).
12/10/1725, Etienne Louis Geoffroy,
entomologist, was born.
13/12/1724, Franz Aepinus,
German natural philosopher, was born in Rostock (died 10/8/1802 in Dorpat).
26/8/1723, Anthony van Leeuwenhoek,
naturalist, died.
30/4/1723, Mathurin Brisson, French zoologist, was born
(died 23/6/1806).
11/9/1721, Rudolf Camerarius, botanist, died (born
12/2/1665).
13/3/1720, Charles Bonnet, Swiss naturalist, was born in
Geneva (died near Geneva 20/5/1793).
29/5/1716, Louis Daubenton, French naturalist, was born (died
1/1/1800).
3/4/1715, William Watson, physician, died.
7/9/1707, George Buffon, French naturalist, was born
(died 15/4/1788).
23/5/1707, Carl Linnaeus, Swedish
botanist who established principles for classifying living organisms, was
born as Carl
Linne, the son of the parish clergyman of Rashult.
22/2/1705, Peter Artedi, Swedish naturalist, was born in
Angermania, Sweden (died 17/9/1735 in Amsterdam).
3/9/1704, Joseph de Jussieu, naturalist,
was born (died 11/4/1779).
12/9/1699, John Martyn, English botanist,
was born (died 29/1/1768).
3/4/1693, George Edwards, British naturalist, was born
(died 23/7/1773).
17/9/1683, The Dutch
scientist Antonie
van Leeuwenhoek wrote to the Royal Society to report his discovery
of bacteria.
See also Medical.
12/2/1665, Rudolf
Camerarius, botanist, was born (died 11/9/1721).
1648, Jan Baptista von Hellmont proved by
experimentation that the increase in weight of a growing willow tree did not
come from the soil in which it was planted. This result was published after his
death in Ortus Medicinae (�On the
development of medicine�).
22/11/1635,
Naturalist Francis
Willoughby was born in Middleton, England. His systematic work on
birds and fish helped pave the way for Linnaeus� classification.
4/4/1609, Charles de
l�Ecluse, botanist, died.
10/5/1605, Ulissi
Aldrovandi, Italian naturalist, died in Bologna (born 11/9/1522 in
Bologna).
11/10/1598, Joachim
Camerarius, botanist, died (born 6/11/1534).
6/11/1534, Joachim
Camerarius, botanist, was born (died 11/10/1598).
11/9/1522, Ulissi
Aldrovandi, Italian naturalist, was born in Bologna (died 10/5/1605
in Bologna).
345 BCE, Aristotle produced the first
animal classification system, dividing some 500 known species into 8 classes.