russian migration to the peninsula continued into the 16th century, when new settlements such as kandalaksha and porya-guba were established. kola was first mentioned in 1565. in the end of the 15th century, the pomors and the sami people were forced into serfdom, mostly by the monasteries. monastery "votchinas" greatly expanded during the 17th century, but were abolished in 1764, when all of the kola peninsula peasants became state peasants.