Bach cantata cantatas are assumed to date from this period: Bach worked in Weimar from 1708. He composed a secular cantata Was mir behagt, ist nur die muntre Jagd, BWV 208 in 1713. The composition of cantatas for the (court chapel) on a regular monthly basis started with his promotion to in March 1714. His goal was to compose a complete set of cantatas for the liturgical year within four years. Cantatas 54 and 199 were performed within the cycle but possibly composed earlier. Bach worked in Köthen from 1717 to 1723, where he composed for example the "Brandenburg concertos". He had
Brandenburg and the lands of the Hevelli from their last Wendish ruler, Pribislav, in 1150. After crushing a force of Sprevane who occupied the town of Brandenburg in the 1150s, Albert proclaimed himself ruler of the new Margraviate of Brandenburg. Albert, and his descendants the Ascanians, then made considerable progress in conquering, colonizing, Christianizing, and cultivating lands as far east as the Oder. Within this region, Slavic and German residents intermarried. During the 13th century, the Ascanians began acquiring territory east of the Oder, later known as the Neumark (see also Altmark). In 1320, the Brandenburg Ascanian line came to an