The earliest known gaming competition occurred on 19 Oct 1972 at Stanford University or college for the overall game Spacewar.[15] Stanford students were asked with an "Intergalactic spacewar olympics" whose grand reward was a year's subscription for Rolling Rock, with Bruce Baumgart receiving the five-man-free-for-all competition and Tovar and Robert E. Maas winning the Team Competition.[16] THE AREA Invaders Championship presented by Atari in 1980 was the initial large scale gaming competition, bringing in more than 10,000 participants across the USA, establishing competitive gaming as a mainstream hobby.[17] In the summer of 1980, Walter Day founded a high credit score record keeping firm called Twin Galaxies.[18] The business went on to help promote video gaming and publicize its information through publications such as the Guinness Booklet of World Documents, and in 1983 it created the U.S. Country wide Video Game Team. The team was involved in tournaments, such as w