Leonhard Seppala was a sled dog breeder and racer from Norway who lived from 1877-1967. He participated in the 1925 Serum Run to Nome, which was a mission to transport a cure to Alaska’s town, Nome, to save it from an epidemic. He travelled 674 miles in 5.5 days. His and his dog’s story is told in the 2019 movie, Togo (2019), starring Willem Dafoe.