Credits and licences
Promethea is an atlas of what humanity has invented and discovered. This is what makes it possible and how you may reuse it.
The catalogue
The catalogue’s texts, dates, places and links are published under the Creative Commons Attribution-ShareAlike 4.0 licence (CC BY-SA 4.0): you may copy and adapt them, crediting Promethea (promethea.earth) and sharing derivatives under the same licence.
CC BY-SA 4.0How it was made
The catalogue was compiled with the help of AI models and is checked in batches against published sources; every verified milestone shows its sources and verification date. Unconfirmed doubtful data is not published, and disputed data is flagged as such. If you spot a mistake, please write to us.
Third-party data and imagery
- NASA Blue MarbleEarth imagery on the globe · public domain
- PALEOMAP PaleoDEMs (C. R. Scotese y N. Wright, 2018)past continents (0–540 Ma) on the «Earth» scale · CC BY 4.0; recoloured and reprojected
- Natural Earthcoastlines and borders · public domain
- Wikidataidentifiers, people and links · CC0
- OpenAlexoriginal publications of discoveries · CC0
- Crossreforiginal publications of discoveries (DOI) · open metadata
- Wikipediaeach article is linked; its text is not reproduced
- MapLibre GL JSglobe engine · BSD-3 licence