On this date

In 1812, the Battle of Fort Dearborn took place as Potawatomi warriors attacked a U.S. military garrison of about 100 people. (Most of the garrison was killed; those who remained were taken prisoner.)

In 1914, the Panama Canal officially opened as the SS Ancon crossed the just-completed waterway between the Pacific and Atlantic oceans.

In 1935, humorist Will Rogers and aviator Wiley Post were killed when their airplane crashed near Point Barrow in the Alaska Territory.

In 1945, in a pre-recorded radio address, Japan’s Emperor Hirohito announced that his country had accepted terms of surrender for ending World War II.

In 1967, a 50-foot-tall sculpture by Pablo Picasso was dedicated in Daley Plaza in Chicago by Mayor Richard J. Daley.

In 1969, the Woodstock Music and Art Fair opened in upstate New York.

Ten years ago: Former NBA referee Tim Donaghy pleaded guilty to felony charges for taking cash payoffs from gamblers and betting on games he’d officiated in a scandal that rocked the league. (Donaghy, sentenced to 15 months in federal prison, was released in November 2009.)

Five years ago: Félix Hernández pitched the Seattle Mariners’ first perfect game and the 23rd in baseball history, overpowering the Tampa Bay Rays 1-0.

One year ago: Republican Donald Trump vowed during a speech in Youngstown, Ohio, to significantly overhaul the country’s screening process and block those who sympathized with extremist groups or didn’t embrace American values.