The area around Potsdam shows occupancy since the Bronze Age and was part of Magna Germania as described by Tacitus. After the migrations, Slavs moved in and Potsdam was probably founded after the 7th century as a settlement of the Heveller centred on a castle. It was first mentioned in a document in 993AD as Poztupimi, when Emperor Otto III gifted the territory to the Quedlinburg Abbey, then led by his aunt Matilda. By 1317, it was mentioned as a small town. It gained its town charter in 1345. In 1573, it was still a small market town of 2,000 inhabitants. Potsdam lost nearly half of its population due to the Thirty Years' War (1618�1648).
A continuous Hohenzollern possession since 1415, Potsdam became prominent, when it was chosen in 1660 as the hunting residence of Frederick William I, Elector of Brandenburg, the core of the powerful state that later became the Kingdom of Prussia. It also housed Prussian barracks.
After the Edict of Potsdam in 1685, Potsdam became a centre of European immigration. Its religious freedom attracted people from France (Huguenots), Russia, the Netherlands and Bohemia. The edict accelerated population growth and economic recovery.
Later, the city became a full residence of the Prussian royal family. The majestic buildings of the royal residences were built mainly during the reign of Frederick the Great. One of these is the Sanssouci Palace (French: "without cares", by Georg Wenzeslaus von Knobelsdorff, 1744), famed for its formal gardens and Rococo interiors. Other royal residences include the New Palace and the Orangery.
In 1815, at the formation of the Province of Brandenburg, Potsdam became the provincial capital until 1918, however, interrupted and succeeded by Berlin as provincial capital between 1827 and 1843, and after 1918. The province comprised two governorates named after their capitals Potsdam and Frankfurt (Oder).
Between 1815 and 1945 the city of Potsdam served as capital of the
