The Nonviolent and Violent Campaigns and Outcomes (NAVCO) dataset collects information on major nonviolent mass campaigns from 1900-2011. NAVCO 2.0 has campaign-year data from 1945-2006. You must register for free in order to download the most recent NAVCO data.
Please cite the NAVCO 2.0 Data as follows:
Erica Chenoweth and Orion A. Lewis. 2013. Nonviolent and Violent Campaigns and Outcomes Dataset, v. 2.0. University of Denver.