A doomed people: the collapse of the Hohokam at Pueblo Grande

Article Abstract:

The Hohokam lived in what is now Arizona from approximately 900-1350. They created over 500 miles of canals to irrigate crops, and had many large settlements. Research on over 630 skeletons of the Hohokam show many suffered from chronic malnutrition and tooth decay, possibly due to overpopulation, diseases or natural disasters. The Hohokam sharply declined around 1450 through unknown causes.

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Suppression of the Cathars: a fairy-tale landscape in southern France belies a brutal crusade

Article Abstract:

The Languedoc region in southern France seems like a fairy-tale landscape to modern-day travelers, but it was the site of a brutal crusade against the Cathars in the 13th century. The crusade began in 1209, and in 1233 the Inquisition was started as an institution for discovery and punishment of heretics. The castle at Queribus, the last fortification of the Cathars, surrendered in 1255.

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Eagle eye at NASA

Article Abstract:

Images of Guatemala from satellites maintained by the National Aeronautics and Space Administration help archaeologists determine the location of Maya sites and preserve the rainforest. Deforestation alters ecological balance and destroys archaeological sites. Satellite images have shown pyramids, canals, causeways and field systems that would otherwise be undetected.

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