1900 in science,
other events of 1901,
1902 in science and the
list of years in science.
Okapi, a relative of the Giraffe found in the rain forests around the Congo River in north east Zaire, is discovered (previously known only to local natives).
The Edison Storage Battery Company is founded.
Europium discovered by Eugéne Demarcay
Élie Cartan develops the exterior derivative.
Kodak introduced the 120 film.
Guglielmo Marconi transmits radio signals from Cornwall to Newfoundland.
First Nobel Prizes awarded
Nobel Prize for Physics: Wilhelm Conrad Röntgen
Nobel Prize for Chemistry: Jacobus Henricus van 't Hoff
Nobel Prize for Medicine: Emil Adolf von Behring
Wollaston Medal for Geology: Charles Barrois
February 28 - Linus Pauling, chemist, Nobel Prize winner for chemistry and peace
September 29 - Enrico Fermi, physicist
December 5 - Werner Heisenberg, physicist
December 16 - Margaret Mead, anthropologist
February 22 - George Francis FitzGerald, mathematician