when was the manchurian crisis
The Mukden Incident, or Manchurian Incident, was a staged event engineered by rogue Japanese military personnel as a pretext for the Japanese invasion in 1931 of northeastern China, known as Manchuria.
On September 18, 1931, Lt. Suemori Kawamoto detonated a small quantity of dynamite close to a railway line owned by Japan 's South Manchuria Railway near Mukden (now Shenyang).