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: "What is the year of the event that occured first, the Drammen Line was built, or Oslo was founded?" whose answer is 1040.
Each document should contain about 30 words, and these documents should contain useful information.

Query: year Oslo founded
Useful Output:

Doc 1: Founded in the year 1040, and established as a “kaupstad” or trading place in 1048 by King Harald III, the city was elevated to a bishopric in
Doc 2: Oslo's history dates back over a thousand years. It was founded circa 1040 by King Harald Hardrada and established as a kaupstad or trading
Doc 3: Oslo was founded a thousand years ago, the ancient city was the capital of  Nobel Peace Prize every year attracts attention to the small Oslo. The
Doc 4: It has been claimed that the city was founded by Harald Hardråde in 1049. However Archeologist have found christian burial sites older than the
Doc 5: Established in the year 1040, Oslo has witnessed numerous transformations over the centuries. Originally named “Ánslo,” the city was founded by King