MEXICO CITY — Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...

A massive gravesite — dating back at least 1,300 years — was unearthed in central Mexico, offering a glimpse into the cultural practices of the region’s pre-Hispanic occupants. The remains of 48 ...

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A large grave dating back at least 1,300 years was unearthed near Mexico City, officials said. Photo from INAH A massive gravesite — dating back at least 1,300 years — was unearthed in central Mexico, ...