Daqing was originally called Datong, which is today’s Datong District of Daqing City. In order to distinguish it from Datong, Shanxi Province, it was decided to change its name. I also thought of calling it Lamadian, but it felt too vulgar. In the end, Ouyang, the then Secretary of Heilongjiang Province The official name was Daqing. Because in 1959 it was the 10th anniversary of the founding of the country and a large oil field was discovered, it was named Daqing.
One more point, the Daqing Oilfield was discovered in 1959, but Daqing City was only established in the 1970s.