" For millennia Ukraine had been the crucible of mighty political conglomerates such as the Scythian, Sarmatian, and Kievan realms. Its inhabitants controlled their own destinies and influenced, sometimes decisively, those of their neighbors. The civilizations that were based in Ukraine stood in the forefront of the cultural and socioeconomic developments in all of Eastern Europe. But after the decline of Galicia-Volhynia, an epochal transformation occurred. Henceforth, Ukrainian lands would no longer form the core of important
political entities and, except for a few brief moments of self-assertion, the fate of Ukraine's inhabitants would be decided in far-off capitals such as Warsaw, Moscow, or Vienna.*

In cultural and economic terms as well, the status of Ukraine would decline to that of an important but peripheral province whose elites identified with foreign cultures and political systems. No longer dominant but dominated, the natives of Ukraine would have to struggle not only for their political selfdetermination but also for their existence as a separate ethnic and national entity. This effort became - and remains to this day - one of the major themes of Ukrainian history.

* During the Polish-Lithuanian period, Ukrainians called themselves Ruthenians (Rusyny), a name derived from Rus'. Belorussians were also called by this name. At this time, Russians were generally called Muscovites. "

― Orest Subtelny , Ukraine: A History