Which battle is considered the turning point of the American Revolution in 1777?

The Battle of Saratoga is widely recognized as the turning point of the American Revolution in 1777 because it was a significant victory for the American forces against the British. This battle marked a crucial shift in momentum for the Continental Army, demonstrating that they could defeat a major British force. The success at Saratoga had profound strategic implications, as it persuaded France to formally ally with the American colonies, providing essential military support, resources, and recognition. This alliance was instrumental in enhancing the overall capabilities of the American forces against the British.

In contrast, the other battles listed did not have the same pivotal outcome in terms of altering the course of the war. The Battle of Trenton was significant for boosting morale but occurred after Saratoga and did not have the same wide-ranging consequences. The Battle of Yorktown was crucial as it effectively ended the war in 1781 but did not occur in 1777. Lastly, the Battle of Lexington was the first battle of the American Revolution in 1775, marking the start of the conflict, but it did not have the strategic weight of Saratoga in terms of its influence on the war's direction.