10.7910/DVN/T9SDEWBecker, BastianBastianBecker0000-0001-6668-153XUniversity of BremenHarvard Dataverse2019Social Sciencescolonialism, empire, development, world politicsBecker, BastianBastianBeckerUniversity of Bremen2019-04-082023-09-21https://www.socium.uni-bremen.de/f/51ebd445c4.pdf1418045488850109630text/tab-separated-valuestext/tab-separated-valuesapplication/pdftext/plain3.0CC0 1.0The Colonial Dates Dataset (COLDAT) aggregates information on the reach and duration of European colonial empires from renowned secondary sources. By aggregating secondary sources, rather than collecting from primary sources, the new dataset reflects the accumulated knowledge in the discipline and relieves researchers from making hard to justify choices between different historical datasets.See read_me for updates.