March 24 1882: German scientist Robert Koch announces in Berlin that he has discovered the bacillus responsible for tuberculosis.

1976: President of Argentina Isabel Péron is ousted in a coup.

March 25 1655: Christiaan Huygens discovers Titan, Saturn’s largest satellite.

1957: West Germany, Italy, France, Luxemburg, The Netherlands, and Belgium sign a treaty establishing the European Economic Community, the base of the European Union (1