Conversation so far:
Was there anything you found interesting about Paddy Chayefsky?
Chayefsky's early stories were frequently influenced by the author's childhood in The Bronx.
What was the name of one of Paddy Chayefsky's short stories
He wrote a story, The Great American Hoax, which sold to Good Housekeeping but was never published.
When did Paddy Chayefsky write The Great American Hoax?
In 1949 he wrote a screen treatment for a story called The Great American Hoax.“
Did Paddy Chayefsky win any awards?
He received three Academy Awards for Marty (1955), The Hospital (1971) and Network (1976).
Did Paddy Chayefsky write anything else?
During 1951–52, Chayefsky wrote adaptations for radio's Theater Guild on the Air: The Meanest Man in the World, Cavalcade of America, Tommy and Over 21.
What was The Meanest Man in the World by Paddy Chayefsky about?
Richard Clarke, a small town lawyer moves to New York City, but fails to be a success. Then he takes a friend’s advice and pretends to be a ruthless heel.
Did Paddy Chayefsky write any more scripts, besides The Meanest Man in the World?
The movie As Young as You Feel was adapted from a Chayefsky story.

Question: When did he write that?
Self-contained rewrite: When did Paddy Chayefsky write As Young as You Feel?