Conversation so far:
When did Marlon Brando go to New York?
When did Marlon Brando graduate?
1943
How long was Marlon Brando in New York?
Did Marlon Brando act in anything while in New York?
in 1944, he made it to Broadway in the bittersweet drama I Remember Mama, playing the son of Mady Christians.

Question: When did he leave New York?
Self-contained rewrite: When did Marlon Brando leave New York?