It was created in 1815, when Prussia reorganised its internal administration. It comprised the mostly rural eastern part of Brandenburg, including the New March and Lower Lusatia. From 1871 Prussia itself was part of the newly founded German Empire.
In aggregate these changes reduced the land area of the Frankfurt Region from 20,731 km2 to 18,390 km2.[1]
In 1945 the part of the region to the east of the Oder and Western Neisse rivers (the Oder–Neisse line) became part of Poland while the western part fell within the Soviet Zone of occupation in Germany. West of the Oder–Neisse line, the Land of Brandenburg, created in 1946, was not administratively subdivided into "government regions". Three years later, however, the newly evolving East German state undertook further administrative reforms in 1952 and the western areas of the former Frankfurt Region became part of the new Frankfurt Bezirk (district).
Demographics
According to the Prussian census of 1890, the Frankfurt Region had a population of 1,137,157, of which 1,090,794 (95.92%) spoke German, 36,720 (3.23%) spoke Sorbian, 4,813 (0.42%) spoke Polish, 413 (0.04%) spoke Czech, and 3,993 (0.35%) identified as bilingual (speaking German and another language).[2]
^As of 1939 Nazi centralism levelled terminological regional peculiarities and Prussian rural Kreise were — like their non-Prussian comparable administrative units — all uniformly termed as Landkreise.