Georeferencer project page

Subset 1: Maps dating before 1800

The first subset comprises maps dating from before the year 1800 and includes 634 maps. The main focus of VU’s map collection lies on public maps from the 19th century and geology maps, which will later be referenced. For now we concentrate on a number of interesting rather old maps and atlases at the VU collection. Among these are some fine examples of the typical Dutch maps of the Waterstate Councils (Hoogheemraden), an atlas by Frederik de Wit and an original copy of the famous Atlas Maior by Johannes Blaeu.

A considerable number of maps in this subset (216) originate from the so called ‘atlas factice’, one of the finest atlases in VU’s map collection. The ‘atlas factice’ was commissioned by a wealthy person, who had his map collection bound into a unique atlas. Unfortunately, the origine of this atlas factice is unknown. All maps without exception were created by famous cartographers, such as Abraham Ortelius, Johannes Blaeu, Johannes Janssonius, Nicolaes Visscher and Frederik de Wit.

Georeferencing these pre 1800 maps constitutes is challenging for two reasons. First of all because, obviously, the accuracy of these maps doesn’t always meet today’s standards. In some cases, map elements are placed incorrectly. This creates the need for a larger number of control points.
Secondly, the topography may have changed considerably since the map was made, making it difficult to find corresponding points. But why not start with a challenge? ‘Fix a location of a map’

Progress Subset 1 (the bar is showing the percentage of maps georeferenced (edited) and those reviewed by the redaction (reviewed).

Top Georeferencers Subset 1

Location (centroid) of georeferenced maps of Subset 1