On May 22, 1968, the nuclear-powered submarine USS Scorpion, with 99 men aboard, sank in the Atlantic Ocean.
In 1813, composer Richard Wagner was born in Leipzig, Germany.
In 1960, an earthquake of magnitude 9.5, the strongest ever measured, struck southern Chile, claiming some 1,655 lives.
In 1962, Continental Airlines Flight 11, , en route from Chicago to Kansas City, Mo., crashed after a bomb apparently brought on board by a passenger exploded, killing all 45 people on board.
In 1992, after nearly 30 years, Johnny Carson hosted NBC’s “Tonight Show” for the final time.
In 2017, a suicide bomber set off an explosive device that killed 22 people at the end of an Ariana Grande concert in Manchester, England.