D.C. Enters the 20th Century

1769: Nicolas-Joseph Cugnot builds the first self-propelled mechanical vehicle (disputed)
1885: Karl Benz builds his first automobile powered by a gasoline engine
1914: Henry Ford begins building cars on a fast-moving production line
1966: Hollywood Squares debuts
2007: Washington D.C. orders its taxicabs to switch to a time/distance meter system

My fellow Americans, our long national nightmare is over. In 15 months, this one will be too.

Sources:

Wikipedia entry for Automobile
Wikipedia entry for Hollywood Squares