About TOPOterm

What is TOPOterm?


TOPOterm is a web service that allows the enrichment of search queries for location names by historical synonyms . Direct queries via a search form in a browser are also possible .

The data is entered and maintained by the partners and are available as open data to the general public.

Search enrichment for database queries


Database query without TOPOterm



Database query with TOPOterm




Who is responsible for TOPOterm


TOPOterm is sponsored by a non-profit organization with the following members: the cantons of Zurich, Bern, Basel and Neuch√Ętel and the Swiss Confederation. Membership is open to all cantons and the Principality of Liechtenstein.

Become a member

Each Swiss canton (and the Principality of Liechtenstein) interested in entering historical geographical names from their area into TOPOterm can become a member of the non-profit organisation responsible for TOPOterm.
Each member will be represented by a suitable institution, e.g. the State Archives.

Interested? Get in contact!

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