MacTutor
Mathematicians Of The Day
19th April
On this day in 1760, Euler wrote the first of 263 letters to Princess Charlotte Ludovica Luisa, later collected as Letters to a German Princess. In the first letter Euler promised to produce:-
... examples of the smallest as well as the greatest extensions of matter actually discoverable in the system of the universe .
Click on Ⓟ for a poster.
Born:
- 1748: Charles Tinseau
- 1846: Henry Heaton Ⓟ
- 1858: George Gibson Ⓟ
- 1880: Evgeny Evgenievich Slutsky Ⓟ
- 1883: Richard von Mises Ⓟ
- 1885: Leonida Tonelli Ⓟ
- 1901: Kiyoshi Oka Ⓟ
- 1905: Charles Ehresmann Ⓟ
- 1909: Hugh Alexander Ⓟ
- 1923: Adegoke Olubummo Ⓟ
Died:
- 1567: Michael Stifel Ⓟ
- 1739: Nicholas Saunderson Ⓟ
- 1791: Richard Price Ⓟ
- 1881: Karl Peterson Ⓟ
- 1914: Charles S Peirce Ⓟ
- 1933: Ernest Hobson Ⓟ
- 1974: Alexander Dinghas Ⓟ
- 2013: Kenneth Appel Ⓟ
Quotation of the day
From Charles S Peirce
The opinion which is fated to be ultimately agreed to by all who investigate, is what we mean by the truth, and the object represented in this opinion is the real.
