## Historical Events

- 1581-08-02 Leiden University names Rudolph Snellius as math professor
- 1735-07-11 Mathematical calculations suggest that it was on this day that Pluto moved from the ninth to the eighth most distant 'planet' from the Sun for the last time before 1979

### Historic Event

1822-06-14 Charles Babbage proposes a "difference engine" in a paper to the Royal Astronomical Society entitled "Note on the application of machinery to the computation of astronomical and mathematical tables"

- 1970-08-24 Bomb kills 1 at U of Wisconsin's Army Math Research Center in Madison
- 2013-03-20 Pierre Deligne wins the 2013 Abel Prize in mathematics
- 2013-03-20 First Breakthrough Prizes, world's most generous science prize worth $3 million, awarded in Mathematics, Life Sciences and Physics established by Julia and Yuri Milner
- 2018-08-02 Fields Medal for mathematics awarded to Caucher Birkar (his stolen minutes later), Alessio Figalli, Peter Scholze and Akshay Venkatesh
- 2019-03-19 American Karen Uhlenbeck becomes the 1st woman to win mathematics Abel Prize
- 2020-09-10 Austrian British researcher Martin Hairer wins Breakthrough prize for mathematics worth $3 million for work on stochastic analysis

## Famous Birthdays

- 1798-01-24 Karl von Staudt, German math professor (projective geometrician)
- 1819-08-09 Jonathan Homer Lane, American astrophysicist who mathematically analyzed the Sun as a gaseous body, born in Geneseo, New York (d. 1880)

### William Thomson

1824-06-26 William Thomson, 1st Baron Kelvin, Irish-Scottish mathematical physicist (Kelvin Scale) and engineer (transatlantic telegraph), born in Belfast, Ireland (d. 1907)

- 1829-08-23 Moritz B. Cantor, German historian of mathematics, born in Mannheim, Germany (d. 1920)
- 1881-03-04 Richard C. Tolman, American mathematical physicist (d. 1948)
- 1899-05-26 Otto E. Neugebauer, Austrian-American mathematician and historian, born in Innsbruck, Austria-Hungary (d. 1990)
- 1910-10-01 José Enrique Moyal, Australian mathematical physicist (d. 1998)
- 1914-03-26 Toru Kumon, Japanese mathematics educator (Kumon Institute of Education,), born in Kōchi Prefecture, Japan (d. 1995)
- 1914-10-21 Martin Gardner, Scientific American math & puzzles columnist
- 1920-03-20 Douglas G Chapman, biomathematical statistician
- 1937-03-16 Amos Tversky, Israeli cognitive and mathematical psychologist, born in Haifa, Mandatory Palestine (d. 1996)
- 1938-05-23 Graham "Johnny" Ball, British TV personality and mathematics educator (Play School), born in Bristol, England
- 1944-12-19 Mitchell Feigenbaum, American mathematical physicist
- 1951-10-19 Demetrios Christodoulou, Greek mathematical physicist, recipient of the Bôcher Memorial Prize, born in Athens, Greece

## Famous Deaths

- 1864-04-29 Charles-Julien Brianchon, French mathematician (Brianchon's theorem), dies at 80
- 1880-05-03 Jonathan Homer Lane, American astrophysicist who mathematically analyzed the Sun as a gaseous body, dies at 60

### William Thomson

1907-12-17 William Thomson, 1st Baron Kelvin, Irish-Scottish mathematical physicist (Kelvin Scale) and engineer (transatlantic telegraph), dies of a chill at 83

- 1920-04-10 Moritz B. Cantor, German historian of mathematics, dies at 90
- 1948-09-05 Richard C. Tolman, American mathematical physicist (b. 1881)
- 1996-07-09 Douglas G Chapman, biomathematical statistician, dies at 76
- 1998-05-22 José Enrique Moyal, mathematical physicist (b. 1910)