James Cook visited Christmas Island.
Virginia became the first state to ratify the Articles of Confederation.
The Continental Congress ratified the Articles of Confederation, the first government rule for the newly-formed United States of America.
During the American Revolution, Lancaster in Pennsylvania became the capital of the United States for just one day.
The state of Vermont became the first to abolish adult slavery after declaring the Constitution of Vermont.
The Second Continental Congress met to create the US flag with stars and stripes.
During the Battle of Princeton, British forces were defeated in New Jersey by George Washington's revolutionary army.