We have used a number of tools and sources (meta sites)* for doing research and building this website and its contents:  

< in progress >  (Genealogy sites) (Blaeu) (Ptolemy)



*NOTE: Regarding the image credits. We have made efforts to trace the sources of the digital maps in case a copyright might be involved. In case we have overseen a person or institution, the necessary amendments will be made asap in future editions.