OpenHistoricalMap (OHM) provides historical mapping and related data, licensed by contributors at the object level. Contributors are strongly encouraged to contribute data using the CC0 license, but in the interest of protecting the rights of historical data creators, such as academics, other open licenses, such as any combination of CC, BY, SA, and NC are supported, as well. You are responsible for understanding the terms of the licenses included in the data you copy, distribute, transmit, and adapt.
This area is too large to be exported as OpenHistoricalMap XML Data. Please zoom in or select a smaller area, or use one of the sources listed below for bulk data downloads.
If the above export fails, please consider using one of the sources listed below:
OpenHistoricalMap is a project designed to store and display map data throughout the history of the world. This is a work in progress, we'll be playing around with many new features as we time-enable the site. We encourage you to start playing around and editing data, too.