Afghan chief Sher Khan defeats Mongul Emperor Humayun at Kanauj.
Italian Jesuit Niccolo Zucchi sees the belts on Jupiter's surface.
Louis XIV sends an expedition to aid James II in Ireland. As a result, England declares war on France.
Merchants form the New York Stock Exchange at 70 Wall Street.
Denmark cedes Norway to Sweden.
Union General Ulysses Grant continues his push towards Vicksburg at the Battle of the Big Black River Bridge.
The first Kentucky Derby is run in Louisville.
Germany occupies Brussels, Belgium and begins the invasion of France.
The U.S. Supreme Court unanimously rules for school integration in Brown v. Board of Education.
The Senate Watergate Committee begins its hearings.
In the Persian Gulf the American guided missile frigate USS Stark is struck by 2 Exocet missiles fired by an Iraqi aircraft; only one detonates, but 37 sailors are killed and 21 are wounded. Whether the launch was deliberate or a mistake is still debated.