Empire Trajectory Dataset - The Epoch Institute

The Epoch Institute's Empire Trajectory Dataset covers 94 
civilisations across five millennia, from ancient Mesopotamia 
to the modern era.

Each entry includes normalised power scores (0–10) across 
six dimensions:

  • Territory
  • Military capacity
  • Economic output
  • Administrative coherence
  • Cultural influence
  • Geopolitical reach

Power scores are researcher-assessed indices drawn from 
peer-reviewed historiography with Harvard-style citations. 
Scores represent relative civilisational power plotted 
across each empire's full lifespan — from founding through 
peak to decline.

The dataset accompanies the Interactive Empire Explorer at 
https://the-epoch-institute.org, where all 94 trajectories 
can be visualised, filtered by region and era, and explored 
alongside full scholarly profiles for each civilisation.

Intended for academic, educational, and research use under 
Creative Commons Attribution 4.0 International (CC BY 4.0). 
You are free to share and adapt this data for any purpose 
provided appropriate credit is given to The Epoch Institute.