20世纪中日俄(苏)三国关系史分期问题试论

历史研究需要进行科学分期，由于所研究的对象不同，因而分期的标准也不尽相同。20世纪中日俄(苏)三国关系史可分为7个时期。1900-1917年为两强凌-弱时期；1917-1931年为三国关系初次变化时期；1931-1945年为战争笼罩三国时期；1945-1949年为三国关系特殊时期；1949-1960年为三国关系再次变化时期；1960-1972年为敌友关系相互转变时期；1972-1991年为三国关系终趋正常时期。

On the Problem of Periodization of the History of Relationship among China, Japan and Russia(Soviet Union) during the 20th Century

Scientific periodization is necessary for history studies. The standards of periodization differ according to different researching subjects. The history of relationship among China, Japan and Russia(Soviet Union)during the 20th century could be divided into 7 periods.1900-1917 is the period of two powerful forces bullying the weak one ;The relationship among the three countries changed for the first time from 1917 to 1931 ;Danger of war enveloped these countries from 1931 to 1945;There had been a special relationship among the three countries from 1945 to 1949;The relationship changed again from 1949 to 1960;During the period of 1960 to 1972,the sate of friendliness and hostility went through transformation one another;The relationship tended to be normal from 1972 to 1991.