Phersu Atlas

Phersu Atlas is an interactive historical atlas that brings more than 5,500 years of political and territorial history into a navigable map, spanning 3499 BC to the present. Its daily-resolution maps let users explore changing borders and see which polity ruled a particular place on a chosen date. The platform covers thousands of polities, rulers, battles and cities, with data updated to January 5, 2025.

Visitors can explore a general history atlas, detailed regional and thematic maps, chronological views of wars and territorial changes, and tools for examining events and locations. Additional features include population, area and geopolitical data for historical polities, categorized war statistics, and an AI map generator for creating realistic maps of countries or historical regions. Phersu Atlas also offers a map tile API for embedding historical maps in websites.

The site complements its maps and data with articles, selected statistics, historical timelines and tutorials. Content ranges from broad accounts of empires and civilizations to focused guides on individual states and cities, supporting both casual exploration and more detailed historical research.