Threatened seriously in their liberty and their faith, the people rose with greater enthusiasm than before, and a general insurrection, in which the peasants joined, spread over the whole country under the leadership of Bogdan Chmielnicki or Khmelnitski (q.v.), whose name is still remembered in the Ukraine.
This desolate region was subsequently peopled by Vlachs, whom the religious persecutions of Louis the Great had driven thither from other parts of his domains, and, between 1350 and 1360, their voivode Bogdan threw off the Hungarian yoke altogether.
During the rebellion of the Cossack chief, Bogdan Chmielnicki (1640), the Poles took it by assault, killing 14,000 persons and burning 5000 houses.
The most interesting poem of Bogdan Zaleski is his "Spirit of the Steppe" (Duch od stepu).
Bogdan Joseph Zaleski was born in 1802 in the Ukraine village, Bohaterka.