Complex sentence: Originally an indigenous Nahua community, the town gradually turned mestizo during the second half of the 19th century as the indigenous population crashed due to the unfavorable conditions and mestizos moved in establishing themselves and intermarrying with the locals.
Split into simpler sentences: Originally an indigenous Nahua community, the town gradually became mestizo during the second half of the 19th century as the indigenous population crashed due to the unfavorable conditions. Mestizos moved in establishing themselves and intermarrying with the locals.