Iditarod Trail dogs played in Alaska's history, Redington and his friends created an epic sled dog race from Anchorage to Nome. The Iditarod Trail Sled Dog Race ultimately revived dog mushing in Alaska and around the world. After years of effort by Redington and the Alaska Congressional delegation, the Iditarod was designated as a National Historic Trail in 1978. National Historic Trails commemorate major routes of exploration, migration, trade, communications, and military actions that formed America. Across America, only 16 trails have been honored as National Historic Trails. The Iditarod is the only Alaskan trail in the national system, and the only
Iditarod Trail Sled Dog Race of those in the back of the pack. After Ophir, the trail diverges into a northern and a southern route, which rejoin at Kaltag. In "even"-numbered years ("e.g." 2016, 2018) the "northern" route is used; in "odd"-numbered years ("e.g." 2017, 2019) the "southern" route is used. During the first few Iditarods only the northern trail was used. In the late 1970s, the southern leg of the route was added. It gave the southern villages a chance to host the Iditarod race and also allowed the route to pass through the trail's namesake, the historical town of Iditarod. The two routes