Based on research conducted during the past twenty years on superordin
ate stratification in Mexico City and the class system of several citi
es, this article has three goals. First, it establishes the historical
origins of ethnic categories that began strictly as racial categories
in the sixteenth century. Second, it describes the main ethnic sector
s of contemporary Mexican society, their class composition, and the pr
inciples of social mobility. Third, it analyzes interclass and interet
hnic relations and the cultural and racial perceptions they engender.
The generalizations of (1) apply to the entire country, whereas those
of (2) and (3) characterize central Mexico (from Oaxaca to Jalisco and
from coast to coast).