This Week
in the
History of Chemistry

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Sources

See also This Month in the History of the Periodic Table (with links to a searchable online map).

January 25-February 7

January
25262728293031
February
1234567
Broken links repaired 29 January 2026.

50-year, 100-year, 150-year, etc. anniversaries appear in bold red.
See also Today in Science History by Ian Ellis.

January 25 January 26 January 27 January 28 January 29 January 30 January 31 February 1 February 2 February 3 February 4 February 5 February 6 February 7
Principal Sources: Milestones in Chemistry Calendar, Copyright © 1996, remains the principal source of information; however, I have checked (and in some cases corrected) its birth dates. Chemical and Engineering News "Top 75" (75th anniversary issue, 1/12/98) and Biographical Encyclopedia of Scientists edited by John Daintith et al. (Institute of Physics, 2nd ed, 1994) are other important sources. Women in Chemistry and Physics : a Biobibliographic Sourcebook, edited by Louise S. Grinstein, Rose K. Rose, and Miriam H. Rafailovich and Notable Women in the Physical Sciences edited by Benjamin F. and Barbara S. Shearer have helped me to add several women to the calendar. The Illustrated Almanac of Science, Technology, and Invention by Raymond L. Francis is the source of several entries. Thanks to all interested readers who have suggested events for inclusion; Lucio Gelmini has been particularly helpful in this regard.

Dates are given according to the Gregorian calendar to the extent I could find them. (Note: this applies particularly to 19th-century Russians.)

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