Already in the 6th and 7th century through the migration of tribes over a dozen Slavic tribes came into the almost settlement-empty area east of the rivers Elbe and Saale. So the "Lusizer" gave theirtheir name to the region by settling there which is now called the Â“NiederlausitzÂ”possession. With the German east expansion in the period of the 10th to 12th century most tribes lost theirtheir national self-sufficiency.
When and why the donation Â“SorbenÂ” passed over to the two maintained tribes is unknown.
The Â“SorbenÂ” resisted to the German authorities, expanded theirtheir settlement through cultivation of new areas and developed an independentindependent language, culture and writing, which were probably the most important basicsbasics for theirtheir survival fight.