Why is "Red Terror (Spain)" trending?

Wikipedia Overview

Red Terror is the name given by historians to various acts of violence committed from 1936 until the end of the Spanish Civil War by sections of nearly all the leftist groups involved. The May 1931 arson attacks against Church property throughout Spain and the determination of the Republican Government to never compromise upon and strictly enforce its ban against classical Catholic education were the beginning of a politicidal campaign of religious persecution against the Catholic Church in Spain. No Republican-controlled region escaped systematic and anticlerical violence, although it was minimal in the Basque Country. The violence consisted of the killing of tens of thousands of people, including 6,832 Roman Catholic priests, the vast majority in the wake of the rightist military coup in July 1936, the Spanish nobility, small business owners, industrialists, conservative politicians, and known or suspected supporters of the right-leaning parties or the anti-Stalinist Left, and the desecration and arson attacks against monasteries, convents, Catholic schools, and churches.