https://www.history.com/this-day-in-history First barrel ride down Niagara Falls-1901. Thirty Years War ends-1648. Concorde makes it’s final flight-2003. Eisenhower pledge support for South Vietnam-1954. Western Union competes it’s first transcontinental telegraph line-1861. George Washington Bridge dedicated-1931. Battle of Caporetto-1917. Unknown Soldier selected 1921. U.N. Is born-1945. Truman declares war with Germany is officially over-1951. NATIONAL BOLOGNA DAY!! NATIONAL FOOD DAY!! UNITED NATIONS DAY!!