九一八事变

the Mukden or Manchurian Railway Incident of 18th September 1931 used by the Japanese as a pretext to annex Manchuria / also known as Liutiaogou incident 柳條溝事變|柳条沟事变

nine / 9

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

eight; 8

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

incident / unforeseen event / events (in general)

to change / to become different / to transform / to vary / rebellion