ACLED (Armed Conflict Location and Events Dataset) (1997–)
ACLED is the most comprehensive public collection of political violence data for developing states. These data contain information on the specific dates and locations of political violence, the types of event, the groups involved, fatalities and changes in territorial control. Information is recorded on the battles, killings, riots, and recruitment activities of rebels, governments, militias, armed groups, protesters and civilians. Event data are derived from a variety of sources, mainly concentrating on reports from war zones, humanitarian agencies, and research publications. As of early 2014, ACLED has recorded over 80,000 individual events, primarily focused on Africa. All ACLED data can be downloaded on this site by country in excel and GIS formats.