(120814) -- MEXICO CITY, Aug. 14, 2012 (Xinhua) -- A woman wears Mexican indigenous traditional clothings as she takes part in a ceremony to commemorate the 491 anniversary of the Historical Defense of Mexico-Tecnochtilan, held at the Tres Culturas Square in Mexico City, capital of Mexico, on Aug. 13, 2012. (Xinhua/Pedro Mera)
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