In 1649 Semyon Dezhnyov built a zimov'ye (winter quarters) here after being wrecked on the Pacific coast the previous year. In 1650 Mikhail Stadukhin and Semyon Motora arrived overland from the Kolyma River. In 1659 Kurbat Ivanov took over, build a proper stockade and made major improvements in administration. About 1697, Anadyrsk was the launching place for Vladimir Atlasov's conquest of Kamchatka. The local Chukchis and Koryaks were warlike, and the post was attacked a number of times. Kennan reports its garrison through much of its service was 600 men and a battery of artillery. Its importance declined with the opening of the sea route through Okhotsk to Kamchatka in 1718. Subsequently, its importance was limited to interactions with the Chukchis. Concluding that attempts to collect tri