Complex sentence: Leval left for Argentina during the dictatorship of Primo de Rivera where he would live from 1923 to 1936, returning to Spain to document the revolution and the urban and rural anarchist collectives.
Split into simpler sentences: Leval left for Argentina during the dictatorship of Primo de Rivera where he would live from 1923 to 1936. Additionally, he documented the revolution and the urban and rural anarchist collectives.