An earthquake struck the main Philippine island of Luzon, killing over 1,500 people 

The Mont Blanc road tunnel, linking France with Italy, was opened 

The first atomic bomb, developed by Robert Oppenheimer and his team at Los Alamos, was exploded in New Mexico 

Det and Wash play longest scoreless game in American League history-18 innings 

Islands of Manua group (Samoa) ceded to US by their chiefs 

John McGraw named manager of New York Giants