What is "criollismo"

Criollismo is a literary movement that was active from the end of the 19th century to the beginning of the 20th century in Mexico, and is considered equivalent to American literary regionalism. Using a realist style to portray the scenes, language, customs and manners of the country the writer was from, especially the lower and peasant classes, criollismo led to an original literature based on the continent's natural elements, mostly epic and foundational. It was strongly influenced by the wars of independence from Spain and also denotes how each country in its own way defines criollo, which in Mexico refers to locally-born people of Spanish ancestry.