Trivial Pursuit Board Game In What Year Was The Original 'Genus' Edition Of The Hit Board Game "Trivial Pursuit" Launched

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

It was founded by two Canadians, established in 1979 and first licensed to Parker Brothers, but now Hasbro owns the rights to them. It was commercially introduced in 1981. The mark was registered, the 10th November this year. The first 1100 copies were published and sold in Canada.