Gapsin Coup
The Gapsin Coup (Korean:갑신정변, 甲申政變), also known as the Gapsin Revolution (갑신혁명, 甲申革命) and Kapsin Incident, was a failed three-day coup d'état which started on 4 December 1884 in the late Joseon Dynast...
Gapsin Coup - Wikipedia