Portal:History of science/Selected anniversaries/December 26
- 1624 - Death of Simon Marius, German astronomer (b. 1573)
- 1780 - Birth of Mary Fairfax Somerville, British mathematician (d. 1872)
- 1791 - Birth of Charles Babbage, English mathematician and inventor (d. 1871)
- 1898 - Marie and Pierre Curie announce the isolation of radium
- 1937 - Birth of John Horton Conway, British mathematician