The toponyms of Finland result mainly from the legacy left by three linguistic heritages: the Finnish language (spoken as first language by about 93% of the population), the Swedish language (about 5.5%) and Sami languages (about 0.03%). Finland’s place names range from those of unknown or unrecognizable origins to more clearly derivable onomastics. There are both national and international recommendations on how to use the bilingual country's place names in texts written in different languages. In Finland, the Research Institute for the Languages of Finland and the National Land Survey of Finland are jointly responsible for the standardization of place names.