Complex sentence: The 1861 Emancipation Manifesto affected only the privately owned serfs, the state-owned serfs were emancipated in 1866 and were given better and larger plots of land.
Split into simpler sentences: The 1861 Emancipation Manifesto affected only the privately owned serfs. The state-owned serfs were emancipated in 1866 and were given better and larger plots of land.