Final answer:
The American Revolution effectively ended with the Battle of Yorktown due to the surrender of the British forces and the subsequent recognition of American independence in the Treaty of Paris.
Step-by-step explanation:
The American Revolution effectively ended with the Battle of Yorktown because the British suffered heavy losses and surrendered to the combined forces of the American and French armies. General Charles Cornwallis, the commanding general of the British, surrendered his army on October 19, 1781. This victory led to the Treaty of Paris, officially recognizing the independence of the original 13 colonies from Great Britain.