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Leonard Seppala with his dog Togo. Togo led the team on the longest relay to Nome carrying the Diphtheria antitoxin. (George Rinhart/Corbis/ Getty Images)
George Rinhart/Corbis/ Getty Images
Leonard Seppala with his dog Togo. Togo led the team on the longest relay to Nome carrying the Diphtheria antitoxin. (George Rinhart/Corbis/ Getty Images)
George Rinhart/Corbis/ Getty Images