Large parts of the Northern Netherlands, and Holland territories were overflowed.

The flooding North Sea created the islands of Wieringen and Texel.

Lake Flevo began to turn into the salt-water sea known as the Zuiderzee.

The flood rendered the settlement of Rotta (the predecessor of Rotterdam) uninhabitable,[2] and marked the beginning of Amsterdam, where the area gained an open connection to the sea, and where a dam was built in the Amstel to protect the land from future floods.

You can help Wikipedia by expanding it.This article about a flood is a stub.