Dunkirk transgression

The events affected the Low Countries and other land near the German Bight, Thames Estuary and The Wash.

The main parts of the Low Countries were lightly populated until about 200 BC, when the climate and environment became more amenable to human habitation.

The heaviest blow came with the "Dunkirk II transgression" that began in the 3rd century and continually worsened, leaving such low land uninhabitable, c. 350–c.

[12] Soil survey evidences and relative lack of human occupation artefacts leads scientists to theorise the Netherlands was largely underwater between the mid-third-century and 1050.

This more narrow geographic range of depopulation covers the third Dunkirk Transgression period (alternatively suffixed III).