Why is Manchu also called "Manchu"

"Manchu" was the name of Manchu before the founding of People's Republic of China (PRC). At that time, Manchu was called "Manchuria", which was a dual title of a nation and a region in history of qing dynasty period.

1635, the founding emperor of the Qing dynasty, Huang taiji, changed the name of the national community of the Jin Empire to "Manchuria". Since then, a new ethnic group of Nuzhen descendants-Manchu was born. Manchu was the dominant nation in the Qing Dynasty, and after the Republic of China, "Manchu" was gradually abolished and renamed "Manchu".

Manchuria, originally a tribal name before the unification of Nuzhen ministries, is in the area of Hetuala City, Xinbin, Liaoning Province today. It was once the birthplace of Aixinjue Luo Nurhachi; The new guest's old name is "Jueluo". Later, Nuerhachi unified the Nuzhen in Jianzhou, the Nuzhen in Haixi and the Nuzhen in Donghai successively, ending the long-term division, separatism and turmoil of the Nuzhen society and establishing a powerful post-Jin empire with a vast territory and a large population in Northeast China. This place is called "Manchuria".