Marathon Chocolate Bar---Marathon was a candy bar consisting of eight inches of braided chocolate and caramel. It was manufactured by Mars Inc and first sold in the United States in August 1973. The bright red packaging contained a ruler with inch markings on the reverse demonstrating that it was as long as it claimed. (The length was the result of its braided shape; it didn't weigh more than standard candy bars.) It was discontinued in October 1981. Note: There was also a 15" version of The Marathon Bar sold in Southern California at local 7/11 stores. These had the 15" ruler on the back of the red wrapper.