Slovakia
The Slovak Republic and the Czech Republic went their separate ways after 1 January 1993, an event sometimes called the Velvet Divorce. Slovakia has remained a close partner with the Czech Republic. Both countries co-operate with Hungary and Poland in the Visegrád Group. Slovakia became a member of NATO on 29 March 2004 and of the European Union on 1 May 2004. On 1 January 2009, Slovakia adopted the Euro as its national currency.
Slovenian tolar
The name "tolar" comes from Thaler, and is cognate with "dollar". The tolar was introduced on 8 October 1991. It replaced the 1990 (Convertible) version of Yugoslav dinar at parity. On 28 June 2004, the tolar was pegged against the euro in the ERM II, the European Union exchange rate mechanism. All recalled banknotes can be exchanged at the central bank for current issue.