<span>The Revolutionary War last official battle in Yorktown ended in October, 1781. Since news took a while to travel, the fighting didn't stop until much later. The war was officially over September 3, 1783, when the Treaty of Paris was signed making it official that America was independent.
Government powers not provided to the national government in the us constitution but are rather given to the states by the 10th amendment are called <em>reserved powers</em>. :)
