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 battle of lexington and concord start?" whose answer is April 19, 1775.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the battle of lexington and concord start
Useful Output:

Doc 1: The Battles of Lexington and Concord were engagements fought between British regular soldiers and militia from the colony of Massachusetts on 19 April 1775.
Doc 2: On April 19, 1775, British and American soldiers exchanged fire in the Massachusetts towns of Lexington and Concord. On the night of April 18, the royal
Doc 3: Patriots' Day commemorates the Battle of Lexington on April 19, 1775. It has been celebrated as a state holiday since 1894, with Lexington Historical
Doc 4: The Battles of Lexington and Concord, fought on April 19, 1775, kicked off the American Revolutionary War (1775-83).
Doc 5: On the morning of April 19, 1775, approximately seventy members of Lexington's town militia faced down eight hundred British troops on the Lexington Green. The