On June 6, 1856, the fifth and final day of the Democratic Party’s national convention in Cincinnati, Ohio, President Franklin Pierce becomes the first elected president of the United States not to be nominated by his party for a second term. Instead, the party chooses James Buchanan, who will go on to win the presidency in November.

On June 6, 1889, a fire ignites in a Seattle woodworking shop and sweeps through some 100 acres, destroying much of the city’s business district and waterfront. The Great Seattle Fire culminates in losses estimated at $20 million—and serves as a turning point in the city’s history.

On June 6, 1944, Supreme Allied Commander General Dwight D. Eisenhower gives the go-ahead for the largest amphibious military operation in history: Operation Overlord, the Allied invasion of northern France, commonly known as D-Day.

James H. Meredith, who in 1962 became the first African American to attend the University of Mississippi, is shot by a sniper shortly after beginning a lone civil rights march through the South. Known as the “March Against Fear,” Meredith had been walking from Memphis, Tennessee, to Jackson, Mississippi, in an attempt to encourage voter registration by African Americans in the South.

In a bloody climax to two years of fighting between the Indian government and Sikh separatists, Indian army troops fight their way into the besieged Golden Temple compound in Amritsar–the holiest shrine of Sikhism–and kill at least 500 Sikh rebels. More than 100 Indian soldiers and scores of nonbelligerent Sikhs also perished in the ferocious gun and artillery battle, which was launched in the early morning hours of June 6. (Sikh groups dispute this figure and say thousands died, including a large number of pilgrims who were there for an important Sikh festival). The army also attacked Sikh guerrillas besieged in three dozen other temples and religious shrines throughout the state of Punjab. Indian officials hailed the operation as a success and said it “broke the back” of the Sikh terrorist movement.