On Nov. 9, 1989, communist East Germany threw open its borders, allowing citizens to travel freely to the West for the first time in decades — a landmark event often referred to as the fall of the Berlin Wall.

On June 22, 1938, in a rematch that bore the weight of both geopolitical symbolism and African American representation, American Joe Louis knocked out German Max Schmeling in just two minutes and four seconds to retain his heavyweight boxing title in front of 70,000 spectators at New York's Yankee Stadium.

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In 1807, Robert Fulton’s North River Steamboat began heading up the Hudson River on its successful round trip between New York and Albany.