Title: New Haven, Connecticut.
Question: In what year were trolleys finally replaced completely by buses?

Title: Affirmative action in the United States.
Question: Who would supposedly be the beneficiaries of a class-based style affirmative action?

Title: Carnival.
Question: How many members do Samba Schools have?

Title: Nonprofit organization.
Question:
How does a US NPO apply for tax exempt status?