Maddison Historical Statistics.
Angus Maddison was a world scholar on quantitative macroeconomic history, including the measurement and analysis of economic growth and development. He was professor at the University of Groningen from 1978 to 1997, and a founder of the Groningen Growth and Development Center.
The Maddison Project has been initiated in March 2010 by a group of close colleagues of Angus Maddison, with the aim to support an effective way of cooperation between scholars to continue Maddison's work on measuring economic performance for different regions, time periods and subtopics.
The resource builds upon Angus Maddison's efforts to estimate GDP and population in the world economy from Roman times to the present day. An updated version of Maddison's original dataset can be downloaded for re-use from the project's website.