Slovak euro coins
Slovakia has been a member of the European Union since May 2004, and is a member of the European Economic and Monetary Union. Slovakia adopted the euro on 1 January 2009, replacing its previous currency, the Slovak koruna.
Austro-Hungarian krone
In Czechoslovakia the currency was superseded by the koruna, at par. The names of the present-day "koruna" and "haléř" (in the Czech Republic) and the pre-Euro "koruna" and "halier" (in Slovakia) are derived from the Austro-Hungarian Krone and Heller.