Before the Migration Period of 300 to 700 AD, the Lombards had settled the future Altmark. Subsequently, Old GermanicSaxon tribes lived in the northwest and Polabian Slavs in the eastern territories along the Elbe. After the Saxon Wars, waged by Charlemagne from 772 to 804, the lands became part of the Carolingian Empire. They formed part of the Eastphalian territory of the Duchy of Saxony, which, from 843 onwards, constituted the eastern borderlands of East Francia under Louis the German. The bishops of Verden and of Halberstadt promoted the Christianisation of the Saxon population. In 936 the German kingOtto I allotted the territory of the later Altmark to the Saxon Count Gero, in order to subdue the West SlavicWends settling on the Elbe. Gero thereafter campaigned in the Slavic lands far beyond the river Elbe and thereafter established the Saxon Marca Geronis stretching up to the Oder in the east. Upon Gero's death in 965, his marca was split and the Northern March was granted to Dietrich of Haldensleben, who nevertheless turned out to be an incapable ruler and lost all the territories east of the Elbe in the Slavic Lutici uprising of 983. He retained only his margravial title and the initial land basis of his predecessor Gero's conquests west of the river. For further one-and-a-half centuries, the lands east of the Elbe defied German control, until in 1134 Emperor Lothair of Supplinburg bestowed the Northern March on the Ascanian count Albert the Bear. Albert signed an inheritance contract with the Slavic Hevelli prince Pribislav and in 1150 succeeded him in his eastern territory around the fortress of Brandenburg an der Havel, which became the nucleus of his newly established Margraviate of Brandenburg in 1157. As the Brandenburg margraves expanded their territory during the course of the Ostsiedlung, the original western territory of the Northern March became known as the Altmark in contrast to the Mittelmark and Neumark beyond the Oder river; the written record first mentions it in 1304 as Antiqua Marchia. As part of Brandenburg, from 1415 held by the House of Hohenzollern, the Altmark became part of Brandenburg-Prussia and of the Kingdom of Prussia. After Prussia's defeat at the hands of Napoleon in 1806, the terms of the Treaty of Tilsit assigned the territory of the Altmark to the new Kingdom of Westphalia. Prussia regained the area upon Napoleon's defeat ; however, it was incorporated into the new Prussian Province of Saxony rather than being attached to the Province of Brandenburg. Within Prussian Saxony, the Altmark was subdivided into the districts of Salzwedel, Gardelegen, Osterburg, and Stendal, all administered within the Regierungsbezirk of Magdeburg. After World War II the Altmark, lying to the east of the inner German border, became part of the new state of Saxony-Anhalt in the Soviet occupation zone. The regional administration of East Germany saw it administered within Magdeburg from 1952 to 1990. With German reunification in 1990, the Altmark became part of a reconstituted Saxony-Anhalt.
Rivers and lakes
The region is drained by the Elbe, joined by the Havel at Havelberg, and its left tributaries of the Milde-Biese-Aland system and the Jeetzel river. The largest natural lake of the Altmark is the Arendsee.
Transport
Road
The Altmark is located off the main traffic routes. The Bundesautobahn 14 leads to the Bundesautobahn 2 from Hanover to Berlin, it however ends north of Magdeburg. A continuation through the Altmark towards Schwerin is planned. Beside which the Federal roadsB71, B107, B188, B189, B190, B248 run through the region.