Conversation so far:
Where did Bob Hayes go to college?
Hayes was a highly recruited athlete, and accepted a football scholarship from Florida A&M University.
What sports did Bob Hayes participate in?
An American track and field athlete, he was a two-sport stand-out in college in both track and football at Florida A&M University.
Did Bob Hayes win any championships in track and field in college?
He was the AAU 100 yard dash champion three years running, from 1962–1964.
Did Bob Hayes participate in any event besides the 100-yard dash?
He also was the first person to break six seconds in the 60-yard dash with his indoor world record of 5.9 seconds.
Did Bob Hayes participate in sports other than track and field in college?
An American track and field athlete, he was a two-sport stand-out in college in both track and football at Florida A&M University.
Did Bob Hayes win any other awards in his track and field career besides AAU 100 yard dash champion?
In 1964 Hayes was the NCAA champion in the 200 meter dash.
Why was Bob Hayes inducted into the Florida A&M University Sports Hall of Fame?
He was once considered the world's fastest human by virtue of his multiple world records in the 60-yard, 100-yard, 220-yard, and Olympic 100-meter dashes.

Question: When did his college career end?
Self-contained rewrite: When did Bob Hayes's college career end?