In 2015, a study using a number of genetic markers indicated that the Siberian Husky, the Alaskan Malamute and the Alaskan husky share a close genetic relationship between each other and were related to Chukotka sled dogs from Siberia. They were separate to the two Inuit dogs, the Canadian Eskimo Dog and the Greenland Dog. In North America, the Siberian Husky and the Malamute both had maintained their Siberian lineage and had contributed significantly to the Alaskan husky, which showed evidence of crossing with European breeds that were consistent with this breed being created in post-colonial North America. Further information: Origin of the domestic dog. The first of the dogs arrived in the Americas 12,000 years ago around the commencement of the Holocene period, however people and their dogs did not settle in the Arctic until the Paleo-Eskimo people 4,500 years ago and then the Thule people 1,000 years ago, with both emigrating from Siberia. The Siberian Husky was originally developed by the Chukchi people of the Chukchi Peninsula in eastern Siberia. They were brought to Nome, Alaska, in 1908 for sled-dog racing.