In 1521, explorer Ferdinand Magellan was killed in the Philippines.
In 1865, the steamboat Sultana exploded in the Mississippi River near Memphis, Tenn., killing some 1,700 passengers.
In 2018, the leaders of North and South Korea signed the Panmunjom Declaration, officially pledging to work toward ending the Korean conflict.
In 1667, blind poet John Milton sold the copyright to his masterpiece, “Par…