What happened 1781AD in United States of America

On March 1, 1781, Congress ratified the Articles of Confederation, but the government that took effect on March 2 did not have the power to levy taxes, and it loosely held the states together.

The Siege of Yorktown, Virginia was a decisive allied victory by the combined forces of the Continental Army commanded by General Washington, the French Army commanded by the General Comte de Rochambeau, and the French Navy commanded by Admiral de Grasse, in the defeat of Cornwallis' British forces. On August 19, the march to Yorktown led by Washington and Rochambeau began, which is known now as the "celebrated march". Washington was in command of an army of 7,800 Frenchmen, 3,100 militia, and 8,000 Continentals. Lacking in experience in siege warfare, Washington often deferred judgment to Rochambeau, effectively putting him in command; however, Rochambeau never challenged Washington's authority.

The siege ended with a British surrender on October 19, 1781; over 7,000 British soldiers were captured, in the last major land battle of the American Revolutionary War.