1783

1894

The United States celebrated the first federal Labor Day holiday.

1976

America’s Viking 2 lander touched down on Mars to take the first close-up, color photographs of the red planet’s surface.

1999

A French judge closed a two-year inquiry into the car crash that killed Princess Diana, dismissing all charges against nine photographers and a press motorcyclist, and concluding the accident was caused by an inebriated driver.