A good deal of the history of Europe is related to its geography. Although traditionally Europe is considered a continent it is, in fact, a peninsula on the Eurasian land mass. But remarkably the European peninsula is made up of a multitude of subpeninsulas. The importance of commerce is the economic history of Europe is closely related to this multitude of subpeninsulas. And the subpeninsulas are often, as in the case of Greece, made up of still smaller peninsulas.