Video gaming in 1973

Introduction
This is how video gaming was in 1973. NOTE: Some of this information is from Wikipedia.

Events

 * 1) Konami was formed on March 19, 1973 in Japan.
 * 2) Hudson Soft Ltd. was formed in May 1973.
 * 3) Taito enters the video game industry.
 * 4) Sega enters the video game industry with Pong clones.
 * 5) Computer Space makes appearances in the films Soylent Green and Sleeper.
 * 6) Empire I, II, and III are developed for the PLATO system by John Daleske.
 * 7) Silas Warner takes over PLATO Empire I and renames it to Civilization.
 * 8) The video game Lemonade Stand is developed for the first time.
 * 9) Maze War begins development for the Imlac PDS-1 computer.

Video game console releases
None

Video game releases

 * 1) Midway Manufacturing licenses Pong from Atari to produce the video game Winner.
 * 2) Atari releases the video game Gotcha.
 * 3) Atari releases the video game PONG Doubles.
 * 4) Williams Electronics releases the video game Paddle Ball, a unlicensed duplicate of Pong.
 * 5) BASIC Computer Games was first published. It had 101 games coded in BASIC.

Conclusion
So, that's what video gaming was like in 1973.