In America, the Georgian period brought such tumultuous events as the Boston Massacre, the Boston Tea Party, and the War of Independence. With the colonies experiencing growing unrest due to "taxation without representation" by Great Britain, King George III sent extra troops in 1774 to monitor the situation. At the same time, the thirteen colonies sent delegates to Philadelphia, Pennsylvania to form the First Continental Congress. In April 1775, as the King's troops advanced on Concord, Massachusetts, Paul Revere sounded the alarm that "The British are coming, the British are coming" as he rode his horse through the late night streets. The battle of Concord and its "shot heard round the world" marked the unofficial beginning of the War of Independence. Within weeks, the colonies again sent delegates to the Second Continental Congress. For almost a year, the Congress attempted to resolve its differences with England, without formally declaring war. However, by June 1776, it became clear that their efforts were hopeless and Congress composed a Declaration of Independence. The American Revolution culminated in 1783 and the adoption of the Treaty of Paris, which recognized the independence of the American colonies. In 1789, the nation elected its first president, George Washington, and enacted the U.S. Constitution.