The Inca Empire stretched roughly 2,500 miles along the Pacific coast of South America and ruled as many as 12 million people. From Cusco, nearly 11,200 feet above sea level, the Inca controlled ...

Ancient DNA reveals people traveled more than 435 miles along Peru’s coast centuries before the Inca Empire, reshaping ancient history.

New study shows ancient DNA evidence of migration in Peru's Chincha Valley, proving North Coast settlers arrived centuries ...

Long-distance migration along Peru's Pacific coast began at least 800 years ago, centuries before the rise of the Inca Empire ...

For centuries, the vanished Inca fortress of Ancocagua existed only in lore. Now, at a mountaintop site in Peru, researchers ...

The Inca Empire in South America, one of the most powerful pre-Columbian societies, was known for many innovations — such as the architecture of Machu Picchu, an extensive road network, and a system ...

Learn how ancient DNA traced a massive pre-Inca migration along Peru’s coast, and how communities preserved their cultural ...

The Inca recognized the importance of guano and the islands where the so-called guano birds breed as central to the survival of their civilization — and they responded by implementing the first ever ...

A cotton and agave fiber Inca khipu is seen at an exhibit at the Smithsonian National Museum of the American Indian in 2015 in Washington, D.C. (Brendan Smialowski | AFP via Getty Images) The Inca ...