Conversation so far:
What teams did Jim Thorpe play Baseball for?
New York Giants baseball club.
What teams did Jim Thorpe play football for?
After playing in the minor leagues with the Milwaukee Brewers in 1916, he returned to the Giants in 1917 but was sold to the Cincinnati Reds early in the season.
When did Jim Thorpe stop playing Baseball?
He continued to play minor league baseball until 1922.
Did Jim Thorpe play Basketball?
Until 2005, most of Thorpe's biographers were unaware of his basketball career until a ticket that documented his time in professional basketball was discovered in an old book that year.
When did Jim Thorpe play professional Basketball?
he was the main feature of the "World Famous Indians" of LaRue, a traveling basketball team.
"Jim Thorpe's world famous Indians" barnstormed for at least two years (1927-28.
Did Jim Thorpe play football?
He first played professional football in 1913.
Where did Jim Thorpe play professional football?
as a member of the Indiana-based Pine Village Pros.
Did Jim Thorpe play professional football anywhere else?
He then signed with the Canton Bulldogs in 1915.
When did Jim Thorpe next switch football teams or stop playing football?
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?