The map above shows the patchwork of kingdoms, principalities, bishoprics, duchies, republics, cities, sultanates, etc. in and around Europe in 1500 CE/AD.
The map above is an Isochrone map which shows how long it would have taken someone to travel from Rome to the farthest reaches of the Roman Empire at its peak (roughly 200 CE/AD).
Travelling within the core of the Empire could have be done in under a week, but travelling all the way to the fringes would have taken someone more than a month.
The map above shows the outcome of a federal plebiscite on the prohibition of alcohol that was held in Canada on September 29, 1898.
It was the first national referendum in the history of the country. It followed agitation over many decades by the temperance movement, which had succeeded introducing prohibition at the local (county) level in some areas, but wanted it extended nationally.