New scientific dating shows Machu Picchu predates historic records by decades, revealing the Inca empire’s early expansion. Machu Picchu, the famous 15th-century Inca site in southern Peru, is up to several decades older than previously thought, according to a new study led by Yale archaeologist Richard Burger. Burger and researchers from several U.S. institutions used … Continue reading Historical Timeline Is Inaccurate: Advanced Radiocarbon Dating Reveals Machu Picchu Is Older Than Expected