Conversation so far:
What teams did Jim Thorpe play Baseball for?
Jim Thorpe played for the New York Giants, Cincinatti Reds, and Boston Braves MLB teams.
What teams did Jim Thorpe play football for?
Jim Thorpe began his athletic career at Carlisle in 1907.
When did Jim Thorpe stop playing Baseball?
Jim Thorpe continued to play minor league baseball until 1922
Did Jim Thorpe play Basketball?
Most of Jim Thorpe's biographers had been unaware of his basketball career until a ticket that documented his time in professional basketball was discovered in an old book in 2005.
When did Jim Thorpe play professional Basketball
Jim Thorpe's world famous Indians barnstormed for at least two years (1927–28) in multiple states
Did Jim Thorpe play football?
Jim Thorpe gained nationwide attention for in 1911. As a running back, defensive back, placekicker and punter, Thorpe scored all of his team's four field goals against Harvard.
Where did Jim Thorpe play professional football?
Jim Thorpe first played professional football in 1913 as a member of the Indiana-based Pine Village Pros, a team that had a several-season winning streak against local teams.
Did Jim Thorpe play professional football anywhere else other than the Indiana-based Pine Village Pros?
Jim Thorpe played also professional footbal for the Canton Bulldogs, Oorang Indians, and Green Bay Press Gazette's first All-NFL team.
When did Jim Thorpe next switch football teams or stop playing football?
Jim Thorpe never played for an NFL championship team. He retired from professional football at age 41, having played 52 NFL games for six teams from 1920 to 1928

Question: When did Jim Thorpe retire from sports altogether?
Self-contained rewrite: When did Jim Thorpe retire from sports altogether?