The Articles of Confederation, instituting perpetual union of the United States of America, are adopted by Congress.
Meriwether Lewis, William Clark and their party reach the mouth of the Columbia River, completing their trek to the Pacific.
Explorer Zebulon Pike discovers the Colorado Peak that bears his name, despite the fact that he didn't climb it.
Union Major General William T. Sherman's troops set fires that destroy much of Atlanta's industrial district prior to beginning Sherman's March to the Sea.
M. Metrot takes off in a Voisin biplane from Algiers, making the first manned flight in Africa.
Eighteen lawsuits are brought against the Tennessee Valley Authority, calling for its dissolution.
The 17th Paris Air Show opens at the Grand Palais des Champs-Elysees. It is the first show of this kind since World War II.
Newark Airport in New Jersey reopens after closing earlier in the year because of an increase in accidents.
Soviet Premier Nikita Khrushchev asserts Soviet superiority in missiles, challenging the United States to a rocket-range shooting match.
The first submarine with nuclear missiles, USS George Washington, takes to sea from Charleston, South Carolina.
In the second day of combat, regiments of the 1st Cavalry Division battle on Landing Zones X-Ray against North Vietnamese forces in the Ia Drang Valley.
Anglo-Irish Agreement signed by British Prime Minister Margaret Thatcher and Irish Taoiseach Garret Fitzgerald.