Drahomanov lectured at Kyiv University from 1870 to 1875, but because of the repressions against the Ukrainian movement peaking up in 1876 with Ems Ukaz was forced to leave the Russian Empire and emigrated to Geneva. In emigration he continued his political, scholarly and publishing activities. In 1885–95, he was a professor at the University of Sofia to his son-in-law Ivan Shishmanov. Drahomanov wrote the first systematic political program for the Ukrainian national movement. He himself defined his political convictions as "ethical socialism," and was deeply impressed by socialist literature as a teenager.