1778 events in history

Jan 18 James Cook is the first known European to discover the Hawaiian Islands, which he names the "Sandwich Islands"
Feb 5 South Carolina becomes the second state to ratify the Articles of Confederation
Feb 6 American Revolutionary War: In Paris the Treaty of Alliance and the Treaty of Amity and Commerce are signed by the United States and France signaling official recognition of the new republic
Feb 14 The United States Flag is formally recognized by a foreign naval vessel for the first time, when French Admiral Toussaint-Guillaume Picquet de la Motte renders a nine gun salute to USS Ranger, commanded by John Paul Jones
Feb 23 American Revolutionary War: Baron von Steuben arrives at Valley Forge, Pennsylvania to help to train the Continental Army
May 1 American Revolution: The Battle of Crooked Billet begins in Hatboro, Pennsylvania
Jun 18 American Revolutionary War: British troops abandon Philadelphia, Pennsylvania
Jun 28 The American Continentals engage the British in the Battle of Monmouth Courthouse resulting in standstill and British withdrawal under cover of darkness
Jul 3 American Revolutionary War: British forces kill 360 people in the Wyoming Valley massacre
Jul 4 American Revolutionary War: American forces under George Clark capture Kaskaskia during the Illinois campaign
Jul 10 American Revolution: Louis XVI of France declares war on the Kingdom of Great Britain
Jul 27 American Revolution: First Battle of Ushant – British and French fleets fight to a standoff
Aug 21 American Revolutionary War: British forces begin besieging the French outpost at Pondichéry
Aug 26 The first recorded ascent of Triglav, the highest mountain in Slovenia
Aug 29 American Revolutionary War: British and American forces battle indecisively at the Battle of Rhode Island
Sep 7 American Revolutionary War: France invades Dominica in the British West Indies, before Britain is even aware of France's involvement in the war
Sep 17 The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe (the Lenape or Delaware Indians)
Sep 19 The Continental Congress passes the first United States federal budget
Oct 3 Captain James Cook anchors in Alaska
Nov 11 Cherry Valley massacre: Loyalists and Seneca Indian forces attack a fort and village in eastern New York during the American Revolutionary War, killing more than forty civilians and soldiers
Nov 26 In the Hawaiian Islands, Captain James Cook becomes the first European to visit Maui
Dec 15 American Revolutionary War: British and French fleets clash in the Battle of St. Lucia
Dec 29 American Revolutionary War: 3,000 British soldiers under the command of Lieutenant Colonel Archibald Campbell capture Savannah, Georgia