Alpena's Placoderm Fossil & Sugar Ray's Birth | May 3

On this day in 2017: A rare fossil of a Placoderm, an armor-plated fish, was found in Alpena, Michigan, exciting paleontologists at the University of Michigan. On this day in 1921: Walker Smith Jr., better known as boxer Sugar Ray Robinson, was born. Although his birth certificate says Georgia, he grew up in Detroit and became one of the greatest boxers, winning six world championships.