Johnny Carson hosts last ‘Tonight Show’ in 1992

Today is Monday, May 22, the 142nd day of 2017. There are 223 days left in the year.

Today’s Highlight in History:

On May 22, 1992, after a reign lasting nearly 30 years, Johnny Carson hosted NBC’s “Tonight Show” for the final time. Jay Leno took over as host three days later.

On this date:

In 1860, the United States and Japan exchanged ratifications of the Treaty of Amity and Commerce during a ceremony in Washington.

In 1913, the American Cancer Society was founded in New York under its original name, the American Society for the Control of Cancer.

In 1935, President Franklin D. Roosevelt appeared before Congress to explain his decision to veto a bill that would have allowed World War I veterans to cash in bonus certificates before their 1945 due date.

In 1939, the foreign ministers of Germany and Italy, Joachim von Ribbentrop and Galeazzo Ciano, signed a “Pact of Steel” committing the two countries to a military alliance.

In 1947, the Truman Doctrine was enacted as Congress appropriated military and economic aid for Greece and Turkey.

In 1960, an earthquake of magnitude 9.5, the strongest ever measured, struck southern Chile, claiming some 1,655 lives.

In 1967, a fire at the L’Innovation department store in Brussels killed 322 people. Poet and playwright Langston Hughes died in New York at age 65.

In 1968, the nuclear-powered submarine USS Scorpion, with 99 men aboard, sank in the Atlantic Ocean. The remains of the sub were later found on the ocean floor 400 miles southwest of the Azores.

In 1969, the lunar module of Apollo 10, with Thomas P. Stafford and Eugene Cernan aboard, flew to within nine miles of the moon’s surface in a dress rehearsal for the first lunar landing.

In 1972, President Richard Nixon began a visit to the Soviet Union, during which he and Kremlin leaders signed the Anti-Ballistic Missile Treaty. The island nation of Ceylon became the republic of Sri Lanka.

In 1981 “Yorkshire Ripper” Peter Sutcliffe was convicted in London of murdering 13 women and was sentenced to life in prison.

In 2011, a tornado devastated Joplin, Missouri, with winds up to 250 mph, claiming at least 159 lives and destroying about 8,000 homes and businesses.

Ten years ago: British prosecutors accused former KGB agent Andrei Lugovoi of murder in the radioactive poisoning of Alexander Litvinenko.