xSub: Cross-National Data on Subnational Violence"Includes data on armed conflict and contention from 156 countries (1969-2017), from 21 data sources, including both large data collections and individual scholars. The data are available as individual events, and as analysis-ready spatial panel datasets. To facilitate comparisons across countries and sources, xSub organizes these data into common units of analysis, by space (country, province, district, grid cell, electoral constituency) and time (year, month, week, day)."