- 1788Constitution ratifiedThe U.S. Constitution went into effect when New Hampshire became the 9th state to ratify it.
Italian statesman, diplomat, and author of “The Prince,” Niccolo Machiavelli died.
Cyrus McCormick's mechanical reaper was patented.
Three civil rights workers—James E. Chaney, 21; Andrew Goodman, 21; and Michael Schwerner, 24—disappeared in Philadelphia, Miss. In 2005, 41 years after the disappearance, Edgar Killen was convicted of their murders.
John Hinckley was found not guilty by reason of insanity for the attempted murder of President Ronald Reagan.
The U.S. Supreme Court decided that burning the U.S. flag was protected under the First Amendment.
The WNBA made its debut.
Michael Melvill pilots the first privately-developed spacecraft,SpaceShipOne, into space.
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