Who was the first president of the new South Korea?
Syngman Rhee
Syngman Rhee (Korean: 리승만, pronounced[i.sɯŋ.man]; Lunisolar calendar March 26 , 1875 – July 19, 1965) was a South Korean politician, the first and the last Head of State of the Provisional Government of the Republic of Korea, and President of South Korea from 1948 to 1960. His three-term presidency of South Korea (August 1948 to April 1960) was strongly affected by Cold War tensions on the Korean Peninsula.
Ban Ki-moon
Until the outbreak of the 2016 South Korean political scandal, Ban was the leading potential candidate for President of South Korea in 2017. However, recent polls showed Moon Jae-in of the main opposition Minjoo Party of Korea in the lead with a support rating of 32.8 percent, while Ban trailed in distant second with 15.4 percent. Moon was eventually elected president on 10 May.
Although Ban repeatedly expressed his desires for running, a UN resolution in 1946 says "a Secretary-General should refrain from accepting" any Governmental position "at any rate immediately on retirement." Exceptions to the rule have been made in past history with the 1986 election of Kurt Waldheim to the post of President of Austria, although the position is ceremonial in nature.