Forced out by the April Revolution, President of South Korea Syngman Rhee resigns after twelve years of dictatorial rule.

Syngman Rhee (Korean: , pronounced [i.s.man]; 26 March 1875 19 July 1965) was a South Korean politician who served as the first president of South Korea from 1948 to 1960.

Rhee was also the first and last president of the Provisional Government of the Republic of Korea from 1919 to his impeachment in 1925 and from 1947 to 1948. As President of South Korea, Rhee's government was characterised by authoritarianism, limited economic development, and in the late 1950s growing political instability and public opposition. Authoritarianism continued in South Korea after Rhee's resignation until 1988, except for a few short breaks.

Born in Hwanghae Province, Joseon, Rhee attended an American Methodist school, where he converted to Christianity. He became involved in anti-Japanese activities after the 189495 First Sino-Japanese War and was imprisoned in 1899. Released in 1904, he moved to the United States, where he obtained degrees from American universities and met President Theodore Roosevelt. After a brief 191012 return to Korea, he moved to Hawaii in 1913. From 1918 to 1924, he was promoted to several high positions in some Korean provisional governments and served as a representative of these to Western powers. He moved to Washington, D.C., in 1939. In 1945, he was returned to US-controlled Korea by the US military, and on 20 July 1948 he was elected President of the Republic of Korea with 92.7% of the vote, beating Kim Gu.

Rhee adopted a hardline anti-communist and pro-American stance as president. Early on in his presidency, his government put down a communist uprising on Jeju Island, and the Mungyeong and Bodo League massacres were committed against suspected communist sympathisers, leaving at least 100,000 people dead. Rhee was president during the outbreak of the Korean War (19501953), in which North Korea invaded South Korea. He refused to sign the armistice agreement that ended the war, wishing to have the peninsula reunited by force.After the fighting ended, the country remained at a low level economically, lagging behind North Korea, and was heavily reliant on U.S. aid. After being re-elected in 1956, the constitution was modified to remove the two-term restriction, despite protests from the opposition. He was elected uncontested in March 1960, after his opponent Cho Byeong-ok died before voting day. After Rhee's ally Lee Ki-poong won the corresponding vice-presidential election by a wide margin, the opposition rejected the result as rigged, which triggered protests. These escalated into the student-led April Revolution when police shot demonstrators in Masan, which forced Rhee to resign on 26 April and ultimately led to the establishment of the Second Republic of Korea. On 28 April, as protesters converged on the presidential palace, the CIA covertly flew him out to Honolulu, Hawaii, where he spent the rest of his life in exile. He died of a stroke in 1965.

The April Revolution (Korean: 4.19 혁명), 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.Protests opposing Rhee were started by student and labor groups in the southeastern port city of Masan on April 11. The protests were triggered by the discovery of the body of a local high school student who had been killed by police during demonstrations against rigged elections in March. Popular discontent had arisen due to Rhee's autocratic rule, corruption, use of violence against political opposition, and uneven development of South Korea. The Masan discovery led to large student protests in Seoul, which were violently suppressed; a total of 186 people were killed during the two weeks of protest. Rhee resigned on April 26 before fleeing to exile in the United States, and was replaced by Yun Posun, beginning the transition to the Second Republic of South Korea.