35K views · 156 reactions | On April 22, 1970, more than 20 million Americans gathered on college campuses and in city squares to celebrate the first Earth Day. | American Experience | PBS | Facebook

After seven years of British control, New York City welcomed George Washington back on this day in 1783. The British evacuation marked a symbolic end to the war and sparked days of celebration across the city. Watch The American Revolution, a film by Ken Burns, Sarah Botstein and David Schmidt, on the PBS app. | PBS