The NHL continued to add teams the next season, adding the Chicago Black Hawks, the Detroit Cougars and the New York Rangers. This means the league finished its first season with three teams in 1917, but ended up with more than three times more by the end of their first decade. Also, during this season, the Toronto St. Patricks changed their name to the Maple Leafs. In the 1930-31 NHL season, the Pirates moved to Philadelphia and became the Quakers, while the Detroit Cougars changed their name to the Falcons. 