Grace Hopper Pioneers Computer Programming

On October 29, 1969, Stanford programmer Bill Duvall sent a single-word message—"login"—to UCLA student programmer Charley Kline, 350 miles away. Transmitted between two computers that each filled an entire room, this message marked the first communication between networked computers and is widely regarded as the birth of the internet.

Researchers at the National Archives have found evidence that at least 250 women dressed as men to fight in the Civil War, some motivated by ideology, some by a taste for adventure and some by the need for a job.

Without their sister, Katharine, the Wright brothers may have never taken flight.

Hollywood actress Hedy Lamarr is remembered for more than her acting—she invented a signal-hopping technology used in Wi-Fi.