Anarchism as a social movement is one of the manifestations of the political left within the working classes of Puerto Rico, having its peak during the late 19th and early 20th century. Anarchism was predominantly present within, but not exclusive to, the working classes that emerged as the sociopolitical environment changed. The municipalities of Caguas and Bayamón were the epicenters of the movement. It was also recorded in other industrial centers, such as Ponce, San Juan, Arecibo, Cayey, Cidra, Juncos, Vega Baja, Utuado, Lares, Yauco and Mayagüez. Despite sharing some core values, Puerto Rican anarchism was heterogeneous in nature. In general, Puerto Rican anarchism was distinctly anti-organized religion, in particular against the Catholic Church that had retained considerable influenc