The second Republic of Korea was the government of South Korea from April 1960 to May 1961.
Proclamation of the Second Republic of Korea. From right: Chang Myon (Prime Minister), Yun Bo-seon (President), Paek Nak-chun (President of the House of Councillors) and Kwak Sang-hoon (President of the Chamber of Deputies)
The April Revolution, also called the April 19 Revolution or April 19 Movement, were mass protests in South Korea against President Syngman Rhee and the First Republic from April 11 to 26, 1960, which led to Rhee's resignation.
Protesters during the April Revolution
Syngman Rhee had served as the first President of South Korea since July 24, 1948, three weeks before its founding on August 15, 1948.
First post-revolution trial began July 5 in South Korea for thirty former high officials of the Rhee regime on charges of corruption, maladministration, and election rigging, etc.