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 first battle of panipat took place?" whose answer is 21 April 1526.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the first battle of panipat take place
Useful Output:

Doc 1: Early on the morning of April 21, 1526, his army met the Delhi sultan's at Panipat, now in Haryana State, about 90 kilometers north of Delhi.
Doc 2: The first Battle of Panipat, on 20 April 1526, was fought between the invading forces of Babur and the Lodi dynasty. It took place in North
Doc 3: First Battle of Panipat occurred on April 21 1526, in North India. It was fought between invading forces of Ibrahim Lodi & Babur.
Doc 4: The first Battle of Panipat, which took place on April 21, 1526, is remembered as a turning point in Indian history.
Doc 5: The first Battle of Panipat took place on 21 April 1526. How many Battles of Panipat were there, and in which years did they occur? There were