1784

The United States ratified the Treaty of Paris ending the Revolutionary War; Britain followed suit in April.

1967

The “Summer of Love” began with a “Human Be-In” involving tens of thousands of young people at Golden Gate Park in San Francisco.

1994

U.S. President Bill Clinton, Russian President Boris Yeltsin and Ukrainian President Leonid Kravchuk signed the Trilateral Statement, an accord to dismantle the nuclear arsenal of Ukraine.