🖱 scroll / buttons bottom-right: zoom · click a colored commune → its full
history (click a period to time-travel) · click grey areas — the local
"department" opens whole (département, Land, province, canton…) · civil validity dates
(state as of the 1st of the chosen month) · before 2017: département view
(exact 1870-1940, current outline as approximation after) · the URL remembers the view
Changes vs
only at the displayed date
changed (name or period)
only at the comparison date unchanged units are dimmed
👆 Click a grey département — or any coloured commune — to explore its history✕