Crimea

Gur
I won't be able to answer that right away – it's something I've been interested in for a while. From memory, I'll add that after the collapse of Kievan Rus', part of the territory, now known as Ukraine, came under the control of Lithuania. However, this wasn't a major problem, as the Lithuanians treated the Ukrainians with loyalty. Until, as a result of a monarchical marriage, Lithuania united with Poland and the Polish-Lithuanian Commonwealth was formed. If you want to clarify the details, read the history of Ukraine, both Soviet and pre-revolutionary authors, you can also delve into the history of Poland. Just don't read nationalists who lie without a twinge of conscience. For example, I have an entire bookshelf of books in Ukrainian, published in the USSR. And they shout from the rostrum of the Verkhovna Rada to the whole world that in those same years, the Ukrainian language was banned in the USSR.