Lithuania (i/ˌlɪθuːˈeɪniə/ or /ˌlɪθjuːˈeɪniə/; Lithuanian: Lietuva), officially the Republic of Lithuania (Lithuanian: Lietuvos Respublika) is a country in Northern Europe, the largest of the three Baltic states. It is situated along the southeastern shore of the Baltic Sea, to the east of Sweden and Denmark. It borders Latvia to the north, Belarus to the east and south, Poland to the south, and Kaliningrad Oblast (a Russian exclave) to the southwest.
The Wikipedia page is [1], which has links to various official websites.
See also Lithuanian State Historical Archives