Cook Finds Sandwich Islands
Jan 18 Captain James Cook stumbles over the Sandwich Islands (Hawaiian Islands)
Articles of Confederation
Feb 5 Articles of Confederation ratified by 2nd state, South Carolina
- Feb 6 Treaty of Amity and Commerce and the Treaty of Alliance signed in Paris, between the United States and France, the first negotiated by the United States. The first established formal diplomatic and commercial relations and the second formed a defensive alliance.
Nathanael Greene Quartermaster General
Mar 2 Nathanael Greene is appointed Quartermaster General of the Continental Army under George Washington
- Mar 7 Captain James Cook 1st sights Oregon coast at Yaquina Bay
- Mar 13 France informs Great Britain of their Treaty of Alliance with the US; Great Britain responds with a declaration of war against France four days later
- Mar 15 Nootka Sound, Vancouver Island discovered by Captain James Cook
- Mar 17 Britain declares war on France, due to French alliance with US
- Mar 22 Captain James Cook sights Cape Flattery, now in Washington state
- Mar 30 Playwright Voltaire crowned with laurel wreath
- Apr 1 New Orleans businessman Oliver Pollock creates the "$" symbol
- May 1 American Revolution: The Battle of Crooked Billet begins in Hatboro, Pennsylvania.
Friedrich Wilhelm von Steuben Takes Charge
May 5 George Washington appoints Friedrich Wilhelm von Steuben Inspector General of the Continental Army
- Jun 18 British Redcoats evacuate Philadelphia, Pennsylvania and head for New York
Continental Army Leaves Valley Forge
Jun 19 George Washington's Continental Army troops finally leave Valley Forge, their winter encampment
- Jun 24 David Rittenhouse observes a total solar eclipse in Philadelphia
Liberty Bell
Jun 27 Liberty Bell returns home to Philadelphia after the British departure
- Jun 28 Battle of Monmouth, New Jersey (General Washington beats Clinton)
- Jun 28 Mary Ludwig Hayes "Molly Pitcher" aids American patriots
- Jul 3 British forces massacre 360 men, women and children in Wyoming, Pennsylvania
- Jul 3 Prussia declares war on Austria
- Jul 8 George Washington headquarters at West Point for his Continental Army
- Aug 3 Teatro alla Scala opens in Milan
- Aug 9 Captain James Cook reaches Cape Prince of Wales, Bering Straits
- Aug 26 First recorded ascent of Triglav, the highest mountain in Slovenia by Balthasar Hacquet
- Aug 31 British kill 17 Stockbridge Indians in Bronx during Revolution
- Sep 4 City of Amsterdam signs trade agreement with American rebels
- Sep 17 1st treaty between the US & Indian tribes signed (Fort Pitt)
- Sep 19 The Continental Congress passes the first budget of the United States
- Oct 3 Captain James Cook anchors at Alaska
- Nov 11 British Soldiers and Loyalists, allied with Iroquois and Seneca raiders, slaughter 40 in the "Cherry Valley Massacre" in central New York
- Nov 26 British explorer Captain James Cook is the first European to visit Maui in the Sandwich Islands (now Hawaii)
- Dec 29 British troops occupy Savannah, Georgia