Conversation so far:
What year was the Y.A. Tittle famous photo taken?
It was taken on September 20, 1964
What was the name of the magazine the famous Y.A. Tittle photo was on?
The photo was published in the October 2, 1964, issue of Life magazine.
What year was the Y.A. Tittle famous photo published in the Life magazine?
The year was 1964.

Question: What sport did he play in his famous photo?
Self-contained rewrite: What sport did Y.A. Tittle play in his famous photo?