Events in the year 2010 in South Korea. Incumbents President – Lee Myung-bak, President of South Korea (2008–2013) Prime Ministers – Chung Un-chan, Prime Minister of South Korea (2009–2010) Yoon Jeung-hyun, Acting Prime Minister of South Korea (2010) Kim Hwang-sik, Prime Minister of South Korea (2010–2013) Events January January 4 – South Korea is affected by the heaviest snowfall in 70 years, causing widespread disruption. January 9 – The 2010 South Korean Figure Skating Championships are held in Seoul. February February 25 – The Constitutional Court of Korea rules the death penalty as a constitutional rule that must be preserved. February 26 – Kim Yuna becomes the women's single skating world champion at the 2010 Winter Olympics, and sets a new world record with 228.56 points overall. March March 2 – The Ministry of Education creates a new teacher evaluation system. March 26 – The ROKS Cheonan sinks while carrying 104 personnel off the country's west coast, killing 46. March 30 – One South Korean naval diver is hospitalized and another diver, Han Ju-ho, dies after losing consciousness whilst searching for survivors from the Cheonan. April April 3 – The South Korean government calls off the rescue operation for the missing Cheonan sailors. April 15 – The Cheonan's stern is raised from the seabed and is transported to the Pyongtaek navy base for investigation. April 21 – South Korea discovers two North Korean assassins plotting to assassinate Hwang Jang-yop, a senior official who defected from North to South Korea. April 23 – North Korea seizes five properties owned by South Korea in Mount Kumgang. April 24 – The bow portion of the Cheonan is salvaged. The bodies of 40 seamen out of the 46 killed are recovered. April 26 – The South Korean government announces the completion of the world's longest seawall in a reclaimed tidal flat in Gunsan, North Jeolla Province. April 27 – Oh Eun-Sun becomes the first woman to successfully scale all of the world's 14 highest peaks. April 29 – The deceased sailors of the Cheonan are given a joint funeral. May May 20 – A South Korean-led investigation carried out by a team of international experts from South Korea, the United States, the United Kingdom, Canada, Australia, and Sweden presents a summary of its investigation into the Cheonan sinking, concluding that the warship had been sunk by a North Korean torpedo fired by a midget