Question: When did the north korean nuclear program start?
Disambiguated questions and answers: question: When did the Phase I of the North Korean nuclear program start?|In what year did the North Korean nuclear program start getting training for scientists?
When did the North Korean nuclear program start (with its "all-fortressization" initiative)?
When did North Korean start building a nuclear reactor?
When did the North Korean nuclear test start?
answer: 1956
1962
1963
2006
October 9, 2006
Natural Questions answer: 1956 (from the Wikipedia article "Timeline of the North Korean nuclear program")