Euro cheques, electronic transfers, banking, etc.) at midnight on 1 January 1999, when the national currencies of participating countries (the eurozone) ceased to exist independently. Their exchange rates were locked at fixed rates against each other. The euro thus became the successor to the European Currency Unit (ECU). The notes and coins for the old currencies, however, continued to be used as legal tender until new euro notes and coins were introduced on 1 January 2002. The changeover period during which the former currencies' notes and coins were exchanged for those of the euro lasted about two months, until 28 February
Korean currency also got devaluated. This was the reason for the reintroduction of won in 1962 as the official currency unit. South Korean currency was still pegged to the US dollar until in 1997 when it was floated into the world market. The Joseon Dynasty issued its first copper coins. In 1888, shortly before the yang was introduced, a small number of coins denominated in hwan (圜) and mun (文) were minted. Even though the yang had been used in past it was reintroduced as the main currency in 1892. One yang was subdivided in 100 fun, making it the first Korean