December Revolution

The December Revolution (Zhenian: 12월 혁명), also known as the First Zhenian Revolution (Zhenian: 제1진국대혁명), was a revolution that resulted in the end of the Empire of Zhenia as well as imperial rule in the nation and established the Zhenian First Republic. The revolution encompasses an array of revolts, uprisings and protests against imperial rule, as well as political movements in the upper echelons of the imperial government. Due to the nature of the revolution, some refer to it as a "revolution from above", provoked by the uprisings and protests of commoners but ultimately executed by the political elites in the imperial government and parliament.

The core causes of the revolution stemmed from distrust in the existence of the monarchy, particularly following the stalemate of the First Zhenian-Yinguonese War in the early 1480s and economic stagnation, coupled with increased social unrest due to the elitist nature of imperial Zhenian society. The Liberal Democratic Union as well as other organizations, which had previously led the Civil Liberties Movement in the 1470s that resulted in the establishment of the Imperial Parliament, called for additional reforms to grant further rights to the people and alleviate social inequalities through the state.

1499
On September 11, 1499, amid protests, Emperor Gojong announced his abdication from the throne.