George Eastman, of Eastman Kodak Company, announced the introduction of a color photographic process 

Jonas Salk, US microbiologist, is born 

Bill Dobbie of Calgary Tigers kicks 10 singles in a game 

St Louis police try a new investigation method-fingerprints 

After over 5 months 2nd Olympic games in Paris France, close 

Ottmar Mergenthaler, German inventor of the Linotype, dies 

English chemist and physicist Michael Faraday demonstrated the first dynamo 

John Smeaton, English civil engineer, dies