The Sunken History Foundation is active in the following projects.

Theme 1: Regional studies

Punt van Reide
This peninsula in the Ems-Dollard estuary is a remnant of the old left side bank of the River Ems. By permission of “Groninger Landschap”, responsible for its (nature_) management, a study is being made into the remainders of human habitation and wartime fortifications (in various periods) in order to check information from archives and recent elevation mapping by LIDAR. Part of the terrain was surveyed using ground penetrating radar. After analysis of the data the project will be concluded with a report in 2014.

Oude Weer
Near the village Den Andel (N-Groningen) we investigate the position of a former tidal gully. Remnants of this gully can still be seen in the presently endiked landscape. Using hand-operated probes and ground penetrating radar, we try to obtain insight in the historical development of this gully, and of an old sluice allowing discharge of surplus water. A first publication.

Drowned Dollard villages – Storm flood 1508
In September 2009 the 500th anniversary of the Cosmas- and Damian storm flood was commemorated, which caused breakage of river dikes and flooding. The Dollard bay achieved its largest extent ever. On September 26, a public event was organized at three locations around the Dollard, with after dusk the marking with sky beamers of the position of 15 of the more than 30 drowned villages. One week before, a scientific symposium was held in Leer on the history of landscape development and habitation of the Dollard area. The symposium presentations have been published in a book „Stormvloed 1509 – Geschiedenis van de Dollard”. Download here on this website.

History of the isle of Mandø
A report on the geological development and on the habitation history of this small island in the Danish Wadden Sea is available on

Theme 2: Relationship islands – main land

History of the Ems-Dollard
In 2012 a start was made in formulating a project and presentation programme concerning the historic developments in the Ems-Dollard estuary. We envisage a programme with various projects and activities, among which a study of the historic relationships between the islands (Rottumeroog/Rottumerplaat and their precursors) and the Groningen mainland.

Zuyderzee – Wadden Sea 1400 – 1900
A contribution is being made in formulating a multidisciplinary project on the socio-economic significance of the broad and coherent maritime cultural landscape formed by the Zuyderzee and Wadden Sea in the period 1400 – 1900. The project will focus on trade and shipping as well as on its dependency of the geomorphological and ecological dynamics of the study area. The lead of this project proposal is with the Groningen University.

Relationships Engelsmanplaat/Schiermonnikoog – Wierum
In this project we pay attention to the geo(morpho)logy and cultural history of the wadden Sea area between the village Wierum (mainland) and the islands Schiermonnikoog and Engelsmanplaat. Up till now some field observations were done near Wierum and on Engelsmanplaat. Furthermore, archives have been studied.