Russian fur trader Gavriil Prilbylov forces Unangan hunters to hunt northern fur seals off remote islands in the Bering Sea and forcibly relocates Unangan families to live there permanently as slaves. The enslavement continues under the Russian America Company until 1867. (http://sites.kpc.alaska.edu/jhaighalaskahistory/files/2018/02/Chapter-4-Unangan-and-Sugpiaq-.pdf)