Question: When did south korea separate from north korea?
Disambiguated questions and answers: question: When did south korea separate from north korea along the 38th parallel north?
When did south korea separate from north korea along the military demarcation line?
answer: 1945
27 July 1953
question: When did the Division of Korea begin?
When was the separation of North and South Korea complete?
answer: 1945
27 July 1953
Natural Questions answer: 1945 (from the Wikipedia article "Division of Korea")