Today is Saturday, May 22, the 142nd day of 2021. There are 223 days left in the year.

Today’s Highlight in History:

On May 22, 2017, a suicide bomber set off an improvised explosive device that killed 22 people at the end of an Ariana Grande concert in Manchester, England.

On this date:

In 1915, the Lassen Peak volcano in Northern California exploded, devastating nearby areas but causing no deaths.

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 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, Missouri, crashed after a bomb apparently brought on board by a passenger exploded, killing all 45 occupants of the Boeing 707.

In 1964, President Lyndon B. Johnson, speaking at the University of Michigan, outlined the goals of his “Great Society,” saying that it “rests on abundance and liberty for all” and “demands an end to poverty and racial injustice.”

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 1992, after a reign lasting nearly 30 years, Johnny Carson hosted NBC’s “Tonight Show” for the final time. Jay Leno took over 3 nights later.

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.

In 2018, Stacey Abrams won Georgia’s Democratic gubernatorial primary, making her the first woman nominee for Georgia governor from either major party. (Abrams, seeking to become the nation’s first Black female governor, was defeated in November by Republican Brian Kemp.)

Ten years ago: A tornado devastated Joplin, Missouri, with winds up to 250 mph, claiming at least 159 lives and destroying about 8,000 homes and businesses.

Five years ago: President Barack Obama arrived in Vietnam, making him the third sitting president to visit the country since the end of the war.