The Map illustrates the estimated population that the polities of the selected year would have had if they had existed today. 2022 is used as reference year for the population, also for the maps after 2022
The population is always calculated as of January 1st of the relevant year.
Polities are the smallest unit in the Phersu Atlas model. They represent political entities that control a territory, regardless of their form. Polities can be either independent or dependent.
Based on the overall Phersu Atlas Model and its comprehensive sources.