SANFORD, Florida (Reuters) - The year before Jackie Robinson broke the color barrier by becoming the first African American to play major league baseball, he fled the racist threats of townspeople in Sanford, Florida, where Trayvon Martin was shot 66 years later.

It was 1946 and Robinson arrived in this picturesque town in central Florida for spring training with a Brooklyn Dodgers farm team. He didn't stay long.

Robinson was forced to leave Sanford twice, according to Chris Lamb, a professor at the College of Charleston in South Carolina, who wrote a graphic account of Robinson's brush with 100 angry locals in a 2004 book....