Prehistory
The earliest evidence of inhabitants in present-day Lithuania dates back to 10,000 BC. Between 3000–2000 BC, the cord-ware culture people spread over a vast region of eastern Europe, between the Baltic Sea and the Vistula River in the West and the Moscow-Kursk line in the East. Merging with the indigenous peoples, they gave rise to the Balts, a distinct Indo-European ethnic group whose descendants are the present-day Lithuanian and Latvian nations and the former Old Prussians.
Read more about this topic: Demographics Of Lithuania