January 16, 2020 TBT: Sofia the Mathematician By The Editors 170 years ago this week, January 15, 1850, the mathematician Sofia Kovalevskaya was born. Biographies History Science Women TBT
January 09, 2020 TBT: Retribution for a Rebel By The Editors 245 years ago this week, on January 10, 1775, the rebel Yemelyan Pugachev was executed in Moscow. Biographies History TBT
