In what year was the original 'Genus' edition of the hit board game "Trivial Pursuit" launched

Question

In what year was the original 'Genus' edition of the hit board game "Trivial Pursuit" launched

Answer 1

Mine also say's copyright 1981

Answer 2

It was created by two Canadians in 1979, and was initially licensed to Parker Brothers, but Hasbro now owns the rights to it.  It was commercially released in 1981.  The trademark was registered on November 10 of that year.  The first 1,100 copies were published and sold in Canada.

Answer 3

Copyright 1981 according to my edition.  I used to win it all the time.  Then they stopped playing with me.

Answer 4

It was 1982 as 2007 they had the 25th anniversary of the launch.