Original sentence: The increase  in the areas east of the Oder, the Duchy of Pomerania, western Greater Poland, Silesia, Austria, Moravia, Prussia and Siebenbürgen may be attributed to influx of settlers,in majority of Eastern Europe the changed agricultural methods created conditions that helped in population growth
Edited sentence: The increase was due to the influx of settlers on the one hand and an increase in indigeneous populations after the colonization on the other hand: settlement was the primary reason for the increase e.in the areas east of the Oder, the Duchy of Pomerania, western Greater Poland, Silesia, Austria, Moravia, Prussia and Siebenbürgen, while in the larger part of Eastern Europe indigeneous populations were responsible for the growth