You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when was abbott and costello who's on first?" whose answer is February 1938.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was abbott and costello's who's on first first performed
Useful Output:

Doc 1: Filmed in 1945 (for "The Naughty Nineties") and later selected for use and preservation by the Baseball Hall of Fame in Cooperstown, NY.
Doc 2: Bud Abbott and Lou Costello's “Who's On First” skit was first performed on radio in 1938. The routine's true origins are a bit fuzzy.
Doc 3: Bud Abbott and Lou Costello may be known for "Who's on First?" But who actually wrote it -- one of the most well-known comedy routines of all time?
Doc 4: On Oct. 7, 1956, a gold record of Abbott and Costello's comedy routine entered Cooperstown.
Doc 5: BUD ABBOTT and LOU COSTELLO. They first performed it on air in 1938 when they became regulars on Kate Smith's radio show.