William Pitt, 1st Earl of Chatham, was a British Whig statesman who served as Prime Minister of Great Britain from 1766 to 1768. Historians call him Chatham or William Pitt the Elder to distinguish him from his son William Pitt the Younger, who was also a prime minister. Pitt was also known as the Great Commoner, because of his long-standing refusal to accept a title until 1766.

The Thirteen Colonies were a group of British colonies on the Atlantic coast of North America during the 17th and 18th centuries. Grievances against the imperial government led the 13 colonies to begin uniting in 1774, and expelling British officials by 1775. Assembled at the Second Continental Congress in Philadelphia, they appointed George Washington as commander-in-chief of the Continental Army to fight the American Revolutionary War. In 1776, Congress adopted the Declaration of Independence as the United States of America. Defeating British armies with French help, the Thirteen Colonies gained sovereignty with the Treaty of Paris in 1783.