Joseph Stalin, Winston Churchill, and Harry S. Truman met at the Potsdam Conference, the…
First atomic bomb exploded near Alamogordo, New Mexico The United States tested the first…
Cofounders Jack Dorsey, Evan Williams, and Biz Stone publicly launched their online microblogging service…
Iranian mathematician Maryam Mirzakhani—the first woman and first Iranian to be awarded a Fields…
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