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Human genetic diversity of South America reveals complex history of Amazonia

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Republication from Science daily

Image: Wikimedia commons

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Source:Max Planck Institute for the Science of Human HistorySummary:The vast cultural and linguistic diversity of Latin American countries is still far from being fully represented by genetic surveys. Western South America in particular holds a key role in the history of the continent due to the presence of three major ecogeographic domains (the Andes, the Amazonia, and the Pacific Coast), and for hosting the earliest and largest complex societies. A new study reveals signatures of history, ecology and cultural diversity in the genetic makeup of living rural populations.

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Maya culture territory was much vaster than known, thousands of newly discovered constructionsreveal

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Republication from Washington Post

by Cleve R. Wootson Jr. February 3 at 3:59 PM Email the author

This digital 3-D image provided by Guatemala’s Mayan Heritage and Nature Foundation, PACUNAM, shows a depiction of the Maya archaeological site at Tikal in Guatemala created using lidar aerial mapping technology.  (Canuto & Auld-Thomas/PACUNAM via AP)

Archaeologists have spent more than a century traipsing through the Guatemalan jungle, Indiana Jones-style, searching through dense vegetation to learn what they could about the Maya civilization that was one of the dominant societies in Mesoamerica for centuries.

But the latest discovery — one archaeologists are calling a “game changer” — didn’t even require a can of bug spray.

Scientists using high-tech, airplane-based lidar mapping tools have discovered tens of thousands of structures constructed by the Maya: defense works, houses, buildings, industrial-size agricultural fields, even new pyramids. The findings, announced Thursday, are already reshaping long-held views about the size and scope of the Maya civilization.

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Uniforms of Argentina (War of Independence 1810-1824)-part II

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Trooper of the Minones de Cataluna.
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This is the second part of a collection of Argentinean officers and regular troops during the Spanish-American Wars of Independence 1810-1824, that is the standing troops of the independent United Provinces of Rio de la Plata as well as the Argentinean troops of Gen. José Francisco de San Martín who gained independence for Chile and most of Peru.
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Uniforms of Argentina (War of Independence 1810-1824) -part I

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General Don Jose de San Martin, Liberator of Chile and most of Peru.
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This is a collection of uniforms of Argentinean officers and regular troops during the Spanish-American Wars of Independence 1810-1824, that is the standing troops of the independent United Provinces of Rio de la Plata as well as the Argentinean troops of Gen. José Francisco de San Martín who gained independence for Chile and most of Peru.

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Uniforms of Venezuela (War of Independence 1810-1824) part II

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Bolivar crossing the Andes with his army. Note his regular troops on the front.

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This is a collection of more uniforms of Venezuelan officers and regular troops during the Spanish-American Wars of Independence 1810-1824.

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Uniforms of Venezuela (War of Independence 1810-1824) part I

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Officer of the Corps of Engineers. Artwork by Lafita Portabella.
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This is a collection of uniforms of Venezuelan officers and regular troops during the Spanish-American Wars of Independence 1810-1824, that is the soldiers of the “Libertador” Gen. Simon Bolivar. Bolivar himself was born in Venezuela but he must be rather considered as a Pan-Spanish-American historical figure just as his Argentinean counterpart Gen. José Francisco de San Martín, the other main figure of the Wars of Independence. Together they share the honour of liberating much of the continent.
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