 Johann Gustav Droysen, innovator of the historical concepts of a Hellenistic Period divided it into a Diadochi Period and an Epigoni Period, and adopted Curtius' view of the result of the "sunedrion" at Babylon as a partition.He refers to the "First Partition of the Satrapies" ("Erste Verteilung der Satrapien").Droysen's view is that Perdiccas distributed the satrapies with a view toward removing his opponents from among the Companions at the scene; thus the changes were never legitimate promotions of Diadochi, persons who expected advancement within the Empire.