This enormous project under the direction of Cornelis Lely, called the Zuiderzee Works, ran from 1919 to 1986, culminating in the creation of the new province of Flevoland.
Acest proiect enorm, condus de Cornelis Lely, numit Lucrările Zuiderzee, a avut loc între 1919 și 1986, culminând cu crearea noii provincii Flevoland.