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Landmark Americas archaeological

Quilmes Ruins

850 CE – still standing

Pre-Columbian Diaguita fortress city in the Calchaquí Valley, occupied for over 1,000 years

Elsewhere in Americas at the time

Records whose own span overlaps this one, found by the same test the canvas draws with. The bar under each card is where it sits inside this one.

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Image credits4 pictures from Wikimedia Commons