The young town of Marten (was proclaimed a town on August 7th, 2006 by the House of Ministers of Republic of Bulgaria) is located in North-Central Bulgaria at bank of Danube river. It belongs to the Ruse muncipality. The town was founded as a Roman Fortress called Tegra (Tegris, Tigris) in the First Century A.D., a part of the fortifications on the Danube border of the Empire. It is supposed to have existed also during the Second Bulgarian Empire. In early Ottoman documents it is named Maruteni. In the site called Yamata near Marten is located a unique for Bulgaria meteorite crater.