1915. Society (3)

Society

1915. The Fruehauf tractor trailer has its beginnings at Detroit where local blacksmith-wagon maker August Fruehauf and his associate Otto Neumann create the first trailer for the Model T Ford.

1915. The one millionth Ford rolls off the assembly line.

1915. Long-distance telephone service between New York and San Francisco begins January 25. The call takes 23 minutes to go through, and it costs $20.70.

1915. Film: D.W. Griffith's The Birth of a Nation has such cinematic innovations as the close-up, pan shot, flashback and use of a moving camera.

1915. Popular songs: "Pack Up Your Troubles in Your Old Kit Bag"; "Paper Doll"; "Nola."

1915. The cancer-causing properties of coal tar are demonstrated by Japanese chemists who paint rabbits' ears with coal tar in the first experiments that produce cancer in animals.