In the years following the mid-1930s, Detroit was referred to as the "City of Champions" after the Tigers, Lions, and Red Wings captured all three major professional sports championships in a seven-month period of time (the Tigers won the World Series in October 1935; the Lions won the NFL championship in December 1935; the Red Wings won the Stanley Cup in April 1936). In 1932, Eddie "The Midnight Express" Tolan from Detroit won the 100- and 200-meter races and two gold medals at the 1932 Summer Olympics. Joe Louis won the heavyweight championship of the world in 1937.

Answer this question, if possible (if impossible, reply "unanswerable"): What is Detroit's sports related nickname?
City of Champions