Conversation so far:
What did Bob Cousy do in high school?
His basketball success was not immediate, and in fact he was cut from the school team in his first year.
Did he play his second year?
The next year, however, he was again cut during the tryouts for the school basketball team.
When did he play in high school?
During a Press League game, the high school basketball coach saw him play.
What did the coach do after seeing him play?
invited Cousy to come to practice the following day to try out for the junior varsity team.
Did he make the team?
but failing his citizenship course made him ineligible for the first semester.

Question: When did he start to play basketball in high school?
Self-contained rewrite: When did Bob Cousy start to play basketball in high school?