Today is Thursday, Sept. 6, the 249th day of 2018. There are 116 days left in the year.

On Sept. 6, 1997, a public funeral was held for Princess Diana at Westminster Abbey in London, six days after her death in a car crash in Paris.

In 1901, President William McKinley was shot and mortally wounded by anarchist Leon Czolgosz at the Pan-American Exposition in Buffalo, New York. (McKinley died eight days later; Czolgosz was executed on Oct. 29.)

In 1909, American explorer Robert Peary sent a telegram from Indian Harbor, Labrador, announcing that he had reached the North Pole five months earlier.

In 1943, 79 people were killed when a New York-bound Pennsylvania Railroad train derailed and crashed in Philadelphia.

In 1944, during World War II, the British government relaxed blackout restrictions and suspended compulsory training for the Home Guard.

In 1970, Palestinian guerrillas seized control of three U.S.-bound jetliners. (Two were later blown up on the ground in Jordan, along with a London-bound plane hijacked on Sept. 9; the fourth plane was destroyed on the ground in Egypt. No hostages were harmed.)

In 1972, the Summer Olympics resumed in Munich, West Germany, a day after the deadly hostage crisis that claimed the lives of eleven Israelis and five Arab abductors.

In 1975, 18-year-old tennis star Martina Navratilova of Czechoslovakia, in New York for the U.S. Open, requested political asylum in the United States.

In 1985, all 31 people aboard a Midwest Express Airlines DC-9 were killed when the Atlanta-bound jetliner crashed just after takeoff from Milwaukee's Mitchell Field.

In 1995, Baltimore Orioles shortstop Cal Ripken broke Lou Gehrig's record by playing his 2,131st consecutive game.

In 1997, weeping masses gathered in Calcutta, India, to pay homage to Mother Teresa, who had died the day before at age 87.

In 2002, meeting outside Washington, D.C. for only the second time since 1800, Congress convened in New York to pay homage to the victims and heroes of September 11.

In 2006, President George W. Bush acknowledged for the first time that the CIA was running secret prisons overseas and said tough interrogation had forced terrorist leaders to reveal plots to attack the United States and its allies.