Latvia as its currency since 1 January 2014, replacing the Latvian lats. The name "Latvija" is derived from the name of the ancient Latgalians, one of four Indo-European Baltic tribes (along with Couronians, Selonians and Semigallians), which formed the ethnic core of modern Latvians together with the Finnic Livonians. Henry of Latvia coined the latinisations of the country's name, "Lettigallia" and "Lethia", both derived from the Latgalians. The terms inspired the variations on the country's name in Romance languages from "Letonia" and in several Germanic languages from "Lettland". Around 3000 BC, the proto-Baltic ancestors of the Latvian people settled on the
State continuity of the Baltic states State continuity of the Baltic states State continuity of the Baltic states describes the continuity of the Baltic states as legal entities under international law while under Soviet rule and German occupation from 1940 to 1991. The prevailing opinion accepts the Baltic thesis of illegal occupation and the actions of the USSR are regarded as contrary to international law in general and to the bilateral treaties between the USSR and the Baltic states in particular. This legal continuity has been recognised by most Western powers and is reflected in their state practice. The application of the Stimson Doctrine by the