The word has somewhat pejorative connotations and most of the Mexican citizens who would be defined as mestizos in the sociological literature would probably self-identify primarily as Mexicans. In the Yucatán peninsula, the word Mestizo is even used about Maya speaking populations living in traditional communities, because during the Caste War of the late 19th century those Maya who did not join the rebellion were classified as mestizos. In Chiapas the word "Ladino" is used instead of mestizo. Sometimes, particularly outside of Mexico, the word "mestizo" is used with the meaning of a person with mixed indigenous and European blood. This usage does not conform to the Mexican social reality where, like in Brazil, a person of mostly indigenous genetic heritage would be considered Mestizo either by rejecting his indigenous culture or by not speaking an indigenous language, and a person with a very low percentage of indigenous genetic heritage would be considered fully indigenous either by speaking an indigenous language or by identifying with a particular indigenous cultural heritage. Additionally the categories carry additional meanings having to do with social class so that the term indigena or the more pejorative "indio" (Indian) is connected with ideas of low social class, poverty, rural background, superstition, being dominated by traditional values as opposed to reason. Commonly, instead of the term Mestizo, which also has a somewhat pejorative usage, the term "gente de razón" ("people of reason") is used and contrasted with "gente de costumbre" ("people of tradition"), cementing the status of indigeneity being connected to superstition and backwardness. For example, it has been observed that upwards social mobility is generally correlated with "whitening", if persons with indigenous biological and cultural roots rise to positions of power and prestige they tend to be viewed as more "white" than if they belonged to a lower social class. Prior to contact with Europeans the indigenous peoples of Mexico had not had any kind of shared identity. Indigenous identity was constructed by the dominant Euro-Mestizo majority and imposed upon the indigenous people as a negatively defined identity, characterized by the lack of assimilation into modern Mexico. Indian identity therefore became socially stigmatizing. Cultural policies in early post-revolutionary Mexico were paternalistic towards the indigenous people, with efforts designed to "help" indigenous peoples achieve the same level of progress as the rest of society, eventually assimilating indigenous peoples completely to Mestizo Mexican culture, working toward the goal of eventually solving the "indian problem" by transforming indigenous communities into mestizo communities .