Korean yen
The Korean yen was the currency of Korea between 1910 and 1945. It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. The yen was subdivided into 100 sen. It replaced the Korean won at par and was replaced by the South Korean won and the North Korean won at par.
Roh Moo-hyun
South Korea received the highest marks on the Reporters Without Borders Press Freedom Index under his administration. The value of the South Korean won against the US Dollar was the strongest during his administration since 1997. Due to the strong currency, for the first time in history, South Korea became the world's 10th largest economy and exceeded the $20,000 milestone in nominal GDP per capita during his administration.