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Spanish Conquest

Spanish Conquest May Have Altered Nation's Shoreline

| Heather Pringle | Posted 05.22.2014 | Science

In 1532, Francisco Pizarro led an expedition of battle-hardened Spanish soldiers on a fateful journey, from the desert coast of northern Peru to the h...

What Really Killed the Aztecs? Try a 16th Century Megadrought

Linda Marsa | Posted 09.30.2013 | Science
Linda Marsa

The rat population was depleted during the drought, when food was scarce. But once the rains returned, food and water were suddenly plentiful and the number of infected rats exploded, spreading the deadly scourge to humans.