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in Mexico City, world-famous repository of some 600,000 art and other objects relating to Mexico. Many anthropological, ethnological, and archaeological materials in the collection date from the pre-Hispanic period. Exhibited on two large floors, these displays show ancient human remains and art objects; figures and pottery of the Pre-Classical Period that began about 5000 BC; and frescoes and statuary of the Classical Period (about 200 BC to AD 900). The Post-Classical Period that began with the arrival of the Spanish conquistadors (1519-1522) is represented by fine ceremonial dishes, ornaments, and giant votive tablets