A Race Against History: The Triple Crown [INFOGRAPHIC]

May 4th marks the 139th running of the Kentucky Derby, but it also marks the 35th year since the last Triple Crown champion. When Affirmed won the crown in 1978, few people could have guessed how long we would have to wait for the next Triple Crown winner. While horses have come close in recent years, none have come close to replicating the winning form of Affirmed or Secretariat, perhaps the most famous horse of all time. Activ8Social takes a closer look at the Triple Crown with "A Race Against History".