Don Host Oblast
- 顿河州（顿河州位于俄罗斯帝国和苏联早期，面积164,539平方公里，人口2,564,238人，首府切尔卡斯克）
Don Host Oblast
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abstract:
The Province (Oblast) of the Don Cossack Host () of Imperial Russia was the official name of the territory of Don Cossacks, roughly coinciding with today's Rostov Oblast of Russia. Its center was Cherkassk, later Novocherkassk.
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