This is an interactive Google Map that illustrates the spread of the Magdeburg Law. To comply with the European General Data Protection Regulation (GDPR) we are obliged to inform you that data (i.e. your IP address) will be sent abroad to non-European map service Google Maps. Google might analyse and use this data for advertisment purposes. Also, your browsing behaviour might be tracked across pages. When you click 'Activate Historic Cities Map', you agree to transfer your data to the map service. Depending on your browser's settings, this will also set cookies in your browser. You can find more information about this in our Privacy Policy.