The Activision Decathlon happened in 1983.
The Activision Decathlon was created on 1983-03-18.
Intellectual Decathlon happened in 1984.
Olympic Decathlon happened in 1981.
Activision Anthology happened in 2002.
Daley Thompson's Decathlon happened in 1984.
Bruce Jenner's World Class Decathlon happened in 1996.
When one is arranged as part of a games event or competition.
BotFighters was a game developed by Activision and released in 2003.
The correct spelling is decathlon.
A decathlon :)
Usually
The population of Activision is 4,000.