The March of Time is an American radio news documentary and dramatization series sponsored by Time Inc. and broadcast from 1931 to 1945. Created by broadcasting pioneer Fred Smith and Time magazine executive Roy E. Larsen, the program combined actual news events with reenactments. The "voice" of The March of Time was Westbrook Van Voorhis. The radio series was the basis of the famed March of Time newsreel series shown in movie theaters from 1935 to 1951.