 In 1948, ten years before William Higinbotham's "Tennis for Two" was developed, Thomas T. Goldsmith Jr. and Estle R. Mann co-patented the "Cathode-Ray Tube Amusement Device," making it the earliest documented video game.Primitive by modern standards in video gaming, the amusement device, however, required players to overlay pictures or illustrations of targets such as airplanes in front of the screen, dovetailing the game's action.1949 Radiocarbon dating

Radiocarbon dating is a dating method that uses the naturally occurring radioisotope carbon-14 (14C) to determine the age of carbonaceous materials up to about 60,000 years.