On this day in 2015, the LIGO Observatory detected its first gravitational wave. These waves had been predicted by Einstein in 1916.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 2009.
Click on Ⓟ for a poster.
Born:
1837: Nicolai Vasilievich Bugaev Ⓟ
1845: Charles Niven Ⓟ
1858: Henry Fine Ⓟ
1887: Simion Stoilow Ⓟ
1891: Ivan Matveevich Vinogradov Ⓟ
1906: Franz Rellich Ⓟ
1920: Alberto Calderón Ⓟ
1926: Hans-Joachim Bremermann Ⓟ
1936: Leone Burton Ⓟ
Died:
1638: Pierre Vernier
1712: Giovanni Cassini Ⓟ
1835: John Brinkley Ⓟ
1910: Jacob Lüroth Ⓟ
1912: Georg Landsberg Ⓟ
1916: Pierre Duhem Ⓟ
1925: Charles Tweedie
1932: Ernest Wilczynski Ⓟ
1959: James Mitchell Ⓟ
1973: Eleanor Pairman Ⓟ
1982: González Domínguez Ⓟ
1983: Bill Boone Ⓟ
2018: Branko Grünbaum Ⓟ
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