Sven Hedin in Iran Sven Anders Hedin, the Swedish geographer, topographer, explorer, photographer, and travel writer arrived by paddle steamer in 1886. He journeyed to Persia twice in 1886 and 1890. In 1887, Hedin published a book about these travels entitled Through Persia, Mesopotamia, and the Caucasus.Sven Hedin is Sweden’s greatest explorer and adventurer of