What was the first video game invented

Pong
That's a really hard question, but the way I understand it:
-The first graphical computer game was Tic-Tac-Toe, made by A.S. Douglas in 1952.
-The first actual video game was Tennis for Two, made by W. Higinbotham in 1958.
-The first video game for computer use is SpaceWar! made by Steve Russel in 1962.