Jackie Robinson is best remembered for being the first African American to play for one of the Major League Baseball teams, but his 1944 court-martial for his refusal to "go to the back of the bus" nearly derailed his career. Also find out about the first UPC barcode, a trained squirrel, the world's longest beard, and twins marrying twins. Listen to the first singing radio commercial - one that saved Wheaties from extinction.Learn more about your ad choices. Visit megaphone.fm/adchoices