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Treaty of Ahmed
It has been nearly 160 years since Sakhalin Island was ceded, what is the current situation? The population is decreasing every year
Sakhalin
Taiwan
History of Tsarist Russia
Treaty of Ahmed
Qing Dynasty
Beijing
01-17
![It has been nearly 160 years since Sakhalin Island was ceded, what is the current situation? The population is decreasing every year[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)