Abstract
Currency is, first of all, a legal category and in general it means a specific form or type of money. Currency is only what the State’s legislation describes and admits on its territory.
It could also do so by acceding to a specific agreement, for example, agreement on a common currency. Legal regulation of a currency and circulation of money is the subject of the currency law.
The currency law is not regarded as a separate branch of law, but it is an important sub-branch of financial law. Status of currency in a certain State can be modified via intervention of legal principles, can be more or less changed or completely transformed.
When such intervention into the currency system is fundamental, which means that the currency in question and its impact on the basic monetary functions is actually defined once again, we are talking about a currency/monetary reform (e.g. the monetary reform of 1 November 1945, the Czechoslovak monetary reform of 1 June 1953)