[UNMAINTAINED] Historic information for French regions, counties, overseas collectivities and towns based on INSEE and Wikipedia data, exported as (re)usable CSV files.
As of today, we do not keep track of chef-lieux for towns so this change will not introduce any visible modification which can be confusing. Do we want to introduce that data in our exports?
See https://github.com/etalab/geohisto/issues/41#issuecomment-302927859