Katarism is a political movement in Bolivia, named for the 18th-century indigenous leader Tupac Katari. The movement originated in the 1970s among the Aymara people, and it stressed that the indigenous peoples of Bolivia suffered from both economic and ethnic oppression due to the lingering effects of colonialism. The 1973 massacre of 13 Quechua peasants at Tolata radicalized the Katarist movement, and Katarists pushed for the Unified Syndical Confederation of Peasant Workers of Bolivia (CSUTCB) to become more indigenized in the late 1970s. The Tupac Katari Revolutionary Movement was launched as the political wing of the movement, while Katarist radicals founded the Tupac Katari Guerrilla Army in the 1980s. Katarist organizations were weakened in the 1980s as non-governmental organizations began to appropriate Katarist symbols, CONDEPA began to integrate Katarist symbols in their discourse, and the Revolutionary Nationalist Movement and Revolutionary Left Movement incorporated Katarist themes starting in the 1993 election.