
1) Cossack Hetmanate
Found on
https://www.crosswordclues.com/clue/cherkasy

Cherkasy (Черка́си, pronounced t͡ʃɛrˈkɑsɪ), or Cherkassy (Черка́ссы t͡ɕɪrˈkasɨ), is a city in central Ukraine. It is the capital of the Cherkasy Oblast (province), as well as the administrative center of the surrounding Cherkasky Raion (district) within the oblast. The city itself is also designated as its own separate ...
Found on
http://en.wikipedia.org/wiki/Cherkasy

city and administrative centre, Cherkasy oblast (province), central Ukraine. It lies on the high right bank of the Dnieper River, along the reservoir ...
Found on
http://www.britannica.com/eb/a-z/c/64
No exact match found.