Today is Wednesday, Sept. 17, the 260th day of 2025. There are 105 days left in the year.

On Sept. 17, 1908, Lt. Thomas E. Selfridge of the U.S. Army Signal Corps became the first person to die in the crash of a powered aircraft, the Wright Flyer, at Fort Myer, Virginia, just outside Washington, D.C. The pilot, Orville Wright, was seriously injured but survived.

In 1787, the Constitution of the United States was completed and signed by a majority of delegates attending the Constitutional Convention in Philadelphia.

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In 1862, more than 3,600 men were killed in the Civil War Battle of Antietam (an-TEE’-tum) in Maryland.

In 1944, during World War II, Allied paratroopers launched Operation Market Garden, landing behind German lines in the Netherlands.

In 1978, after 12 da

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