Korean currency
The yen was the currency of Korea during the Colonial rule, from 1910 to 1945, and was issued by the Bank of Joseon It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. It was replaced by the South Korean won at par in 1945, and by the North Korean won in 1947.
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.