The Iditarod is a dog sled race held in Alaska along a trail from Anchorage to Nome. It was started in the 1920s to showcase sled dog racing and honor the sled dog teams that helped transport medicine to Nome during a diphtheria outbreak. Mushers drive dog sled teams along the 1,000+ mile trail, adhering to rules like having a minimum of 12 dogs and stopping to let others pass. Popular mushers who have done well in the race include Doug Swingley, Dee Dee Jonrowe, and Rick Swenson.