A game that is easy to learn, but difficult to master. This was the concept Atari founder Nolan Bushnell instilled into Allan Alcorn, a then-24-year-old engineer, prior to the development of one of the most recognizable games of all time, Pong, just over 50 years ago.

Pong, a video game in which a square is bounced between two rectangles controlled by players, was released on November 29th of 1972 by Atari, only a few days more than 50 years ago. Atari sold more than 8,000 Pong arcade cabinets, and a few years later, the home version would become an instant success, selling about 150,000 units of a console that played nothing but Pong. However, despite how much time has passed, and the massive changes the gaming industry has endured, Pong‘s — and Atari’s — influence on the world of video games remains prevalent today. Watch the video below for the full story.