Question: What year was the trophy, in which the 1989-90 Calgary Flames won, commissioned?
Sentence (from "1989–90 Calgary Flames season"): In defence of their first Stanley Cup championship, the Flames remained a dominant team on the ice, finishing atop the Smythe Division for the third consecutive year, and 2nd overall in the NHL with 99 points - two points behind the Boston Bruins.
Relevant evidence: Yes