This week, Ralph Baer passed away at age 92. In honor of his memory, Washington Post wrote an article about his greatest achievement: the invention of the first video game.

“He was ‘riding the subway one day to work [in a factory] and someone across the aisle from me is reading a magazine. On the back of the magazine is an ad by National Radio Institute in Washington, D.C., ‘Make big money in radio and television servicing.’ I guess some bell went off inside of me — that was me. I subscribed immediately, and I paid about a buck and a quarter out of my $12 a week wages to take this course.'”

Read more about the process of making the first video game here