OHM Map
The core Open History Map web client — the interactive map where you navigate space and time across our datasets.
The OHM web client is the canonical entry point to the project’s data: a MapLibre-based interface that lets you pan and zoom across geography and across time, switching between historical layers, base maps and thematic overlays.
It is the public face of the platform; the rest of the stack on this page exists either to feed it data, or to extend the workflow around it.