1908

Henry Ford introduced his Model T automobile to the market.

1949

Mao Zedong proclaimed the People’s Republic of China during a ceremony in Beijing.

1964

The Free Speech Movement began at UC Berkeley.

2017

A gunman opened fire from a room at the Mandalay Bay casino hotel in Las Vegas on a crowd of 22,000 country music fans at a concert below, leaving 58 people dead and more than 800 injured in the deadliest mass shooting in modern U.S. history; the gunman killed himself before officers arrived.