Chronas is a history map application with over 50 million data points which every registered user can curate and contribute to (just like Wikipedia).
Cost / License
- Free
- Open Source
Platforms
- Online

World History Atlas is described as 'Chronological and geographical presentation of historical topics and events. Travel through the fascinating history of mankind from the earliest civilizations to the present' and is an app. There are 2 alternatives to World History Atlas for Web-based. The best World History Atlas alternative is Chronas, which is both free and Open Source.
Chronas is a history map application with over 50 million data points which every registered user can curate and contribute to (just like Wikipedia).

The website offers a world map of every year in history from 3000 BC up until the present, showing every nation, civilization, empire and culture that is known to have existed in each given year (BC dates are determined with a minus sign).
