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 did the minnesota vikings become a football team?" whose answer is January 28, 1960.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the minnesota vikings become a football team
Useful Output:

Doc 1: The Minnesota Vikings were established on January 28, 1960. They made their first game debut in 1961. The team is obviously named after our
Doc 2: Here's how the Minnesota Vikings, founded in 1961, got their name: "The name Vikings was an obvious choice for the NFL's new team in
Doc 3: Football History Docum for games • Greatest NFL Close Gam  Comments304. Melody Walton. Most of the success was being outdoor stadium.
Doc 4: The Minnesota Vikings were founded as an AFL team in 1959, though they accepted an invite to become an NFL expansion team in the NFL in the 1961
Doc 5: Minnesota became the fourteenth franchise added to the National Football League on January 28, 1960, at the NFL owners' meeting in Miami,