To determine which event would correctly match the first date on the timeline, we need to consider the chronological order of these historical events:
- The Battle of Lexington and Concord (April 19, 1775)
- The Declaration of Independence (July 4, 1776)
- The Battle of Saratoga (September 19 and October 7, 1777)
- Cornwallis Surrenders at Yorktown (October 19, 1781)
Assuming the first date on the timeline refers to the earliest event, the correct answer would be:
The Battle of Lexington and Concord.