In the early 20th century Amstelveen was a small rural village. The turf industry had collapsed, so the revenues of it were gone. The village was somewhat isolated, because no major rail and waterway were connected. The main source of income was livestockfarming with some arable, but the horticulture and floriculture were already emerging.
In 1852 the Haarlemmermeer polder was reclaimed and the "Fort at the Schiphol" was created as a defense for the capital Amsterdam. Forts were in those days more often named after rivers. "Fort at the Schiphol" was a separating ditch betweenAalsmeer and Amstelveen,and named after a piece of land from Amstelveen. Fort Schiphol, became a military airport in 1916. Four