 After World War II, the two teams in Hamilton—the Tigers and the Flying Wildcats—merged both their organizations into the Hamilton Tiger-Cats.The league remained stable with nine franchises—the BC Lions, Calgary Stampeders, Edmonton Eskimos, Saskatchewan Roughriders, Winnipeg Blue Bombers, Hamilton Tiger-Cats, Toronto Argonauts, Ottawa Rough Riders and Montreal Alouettes—from its 1958 inception until 1981.After the 1981 season, the Alouettes folded and were replaced the next year by a new franchise named the Concordes.