Grigory Shelikhov led attacks on Kodiak Island against the indigenous Alutiiq (Sugpiaqs) in 1784, known as the Awa'uq Massacre. According to some estimates, Russian employees of the trading company killed more than 2,000 Alutiiq. The company then took over control of the island. By the late 1790s, its trading posts had become the centers of permanent settlements of Russian America (1799–1867). Until about 1819, Russian settlement and activity was largely confined to the Aleutian Islands, the Pribilof Islands, Kodiak Island, and to scattered coastal locations on the mainland. Russian Orthodox missionaries went to these islands, where in 1800 priests conducted services in the local language on Kodiak Island, and by 1824 in the Aleutian Islands. An Orthodox priest translated the Holy Scripture and the liturgy into Tlingit language, which was used by another major people of Alaska Natives.