, is a country on the eastern coast of the Baltic Sea in Northern Europe.
It is bordered to the north by the Gulf of Finland with Finland on the other side, to the west by the Baltic Sea with Sweden on the other side, to the south by Latvia (343 km), and to the east by Lake Peipus and Russia (338.6 km).
The overall understanding of the Viking Age in Estonia is deemed to be fragmentary and superficial, because of the limited amount of surviving source material.
The geographical areas of the Aesti and of Estonia do not match, with the Aesti living farther south.In 1187 Estonians (Oeselians), Curonians or/and Karelians sacked Sigtuna, which was a major city of Sweden at the time.The society, economy, settlement and culture of the territory of what is in the present-day the country of Estonia is studied mainly through archaeological sources.(16,366 sq mi), and is influenced by a humid continental climate.The official language of the country, Estonian, is the second-most-spoken Finnic language.