The World's Writing Systems was created in 1996.
Sumerians
The Sequoya created writing systems. Thanks, -KDG
India has has writing systems since at least the 3rd Century BCE. No one knows who created them.
When Worlds Collide was created in 1933.
The motto of Origin Systems is 'We Create Worlds'.
Different Worlds was created in 1979.
Hunter of Worlds was created in 1977.
Wizards' Worlds was created in 1989.
Active Worlds was created in 1995.
Spindizzy Worlds was created in 1990.
Forgotten Worlds was created in 1988.
Frontier Worlds was created in 1999.