The census has been around since the beginning of the United States, which meant the entire population had to be counted by hand. Until one inventor saw a better way forward.
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.