The American Revolution ended British rule over the North American colonies and created the United States. It was both an exhilarating and disturbing time. Many events led to the Revolution, including taxation acts by the British Parliament intended to raise revenue from the colonies and restrictions on colonial trade and settlement. Growing colonial unhappiness culminated in open warfare at Lexington and Concord in 1775. The Second Continental Congress formed the Continental Army under George Washington and governed the colonies during the Revolutionary War.