The Historical Varieties of Democracy Dataset (Historical V-Dem) is a new dataset containing about 260 indicators, both factual and evaluative, describing various aspects of political regimes and state institutions. The dataset covers 91 polities globally – including most large, sovereign...

We present a new dataset comprising more than 1900 regimes in 197 polities over the time period 1789-2016. We use this dataset to describe dierent historical patterns of regime duration globally, leveraging ne-grained measures on when regimes started and ended and a nuanced scheme of dierent...

Most studies of democratic developments are limited to the period after World War II. However, political regimes varied according to different aspects of democracy long before the establishment of modern liberal mass democracies. We come down strongly in favor of collecting disaggregate and...