The German Dollar is a term used to refer to three different currencies: the Thaler (6 letters), Euro (4 letters), and Taler (5 letters). The Thaler was a silver coin used in many parts of Europe from the 15th to 19th centuries. The Euro is the official currency of the European Union, which was adopted in 1999. The Taler is a silver coin that was used in Germany from the 16th to 19th centuries.