In this video clip of History's Mail Call, host R. Lee Ermey takes a look at what kind of rockets were the first used in combat. In 1807 William Congreve created the Congreve Rocket which was used in the Napoleonic Wars. It weighed 32 pounds and could fire 2,000 yards in about 29 seconds.
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.