EntityQ367815· pop 5· linked from 1 articlesDauerwaldvertragSign in to save1915 contract in which Berlin bought neighbouring forestsConnectionsKöpenickEntityBerlinEntityWorld War IIConceptforestEntityBrandenburgEntityInternational Standard Book NumberEntityGerman Democratic RepublicEntityPotsdamEntityPinusEntityPrussiaEntityWilhelm IIEntitydigital object identifierEntityInternational Standard Serial NumberEntityWest BerlinEntityalmanacEntitywastewaterEntitymonocultureEntityBerlin-Tegel AirportEntityspeculationEntityCharlottenburgEntityCategories1910s in Berlin1915 in Germany1915 in politics1915 treatiesForestry in Germany