Information on electoral rules in 1,826 legislative elections and 648 presidential elections in democracies since 1919.
Data on elections, parties, and cabinets in interwar Europe.
Data on ethnic groups' access to state power, their settlement patterns, links to rebel organizations, transborder ethnic kin relations, and intraethnic cleavages.
Linguistic, religious, and racial cleavages segments of ethnic groups in the Ethnic Power Relations dataset.
Link between 10'000 ethnic categories in 11 datasets on ethnic groups in Africa