I visited the Mexican History Museum in Monterrey where they had an interesting exhibit on 18th century paintings that described the various races at the time. (Espanyol y Negra = Mulata)

Introduction: The origin of these works can be traced back to 1710, when the viceroy Fernando de Alencastre Noroña y Silva, Duke of Linares, wanted to introduce King Philip V and his court to the different racial mixtures of New Spain. The caste society was the product of eighteenth-century mentality. The term caste meant "racial mixture", that is, the crossing between the main groups of society in New Spain: indigenous, mestizo, white and black, as well as the successive result of multiple mixtures between them >>>

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