It was September 5, 1882.
In 1644 the Chinese capital at Beijing was captured by the rebel leader Li Zicheng and desperate Ming dynasty officials called Manchus for aid
Your answer to this question is mainly bay!
June 25, 1950<span>On June 25, 1950, the Korean War began when some 75,000 soldiers from the North Korean People's Army poured across the 38th parallel, the boundary between the Soviet-backed Democratic People's Republic of Korea to the north and the pro-Western Republic of Korea to the south.</span>