Study of the Manchu language by Russian sinologists started in the early 18th century, soon after the founding of the Russian Orthodox Mission in Beijing, to which most early Russian sinologists were connected. Illarion Kalinovich Rossokhin (died 1761) translated a number of Manchu works, such as "The history of Kangxi's conquest of the Khalkha and Oirat nomads of the Great Tartary, in five parts" (История о завоевании китайским ханом Канхием калкаского и элетского народа, кочующего в Великой Татарии, состоящая в пяти частях), as well as some legal treatises and a Manchu–Chinese dictionary. In the late 1830s, Georgy M. Rozov translated from Manchu the "History of the Jin (Jurchen) Dynasty". A school to train Manchu language translators was started in Irkutsk in the 18th century, and existed for a fairly long period.