The Baltic Sea is located in Northern Europe, from 53 deg. to 66 deg. north latitude and from 20 deg. to 26 deg. east longitude. It is bounded by the Scandinavian Peninsula, the mainlands of Northern Europe, Eastern Europe, Central Europe, and the Danish islands. It drains into the Kattegat by way of the Oresund, the Great Belt and the Little Belt. The first to name it the Baltic Sea was Adam of Bremen and he seems to have based it on a large island, Baltia, mentioned by Xenophon and located in northern Europe.