Conversation so far:
Where is Howard Zinn from
New York City, U.S.
Where did Howard Zinn go to college
From 1956 through 1963, Zinn chaired the Department of History and social sciences at Spelman College
What did Howard Zinn do after being in the navy yard
Concerns about low wages and hazardous working conditions compelled Zinn and several other apprentices to form the Apprentice Association.

Question: What is it
Self-contained rewrite: What is the apprentice Association