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.
Korea
Korean is the official language of both North and South Korea, and (along with Mandarin) of Yanbian Korean Autonomous Prefecture in the Manchuria area of China. Worldwide, there are up to 80 million speakers of the Korean language. South Korea has around 50 million speakers while North Korea around 25 million. Other large groups of Korean speakers through Korean diaspora are found in China, the United States, Japan, former Soviet Union and elsewhere.