The kuna is the currency of Croatia, in use since 1994 (sign: kn; code: HRK). It is subdivided into 100 lipa. The kuna is issued by the Croatian National Bank and the coins are minted by the Croatian Monetary Institute. The word "kuna" means "marten" in Croatian since it is based on the use of marten pelts as units of value in medieval trading. The word lipa means "linden (lime) tree", a species that was traditionally planted around marketplaces in Croatia and elsewhere in the Austro-Hungarian Empire during the early modern period.