Clues to prehistoric human exploration found in sweet potato genomeBreaking News
tags: discoveries, Science, genetics, food, Age of Exploration
Europeans raced across oceans and continents during the Age of Exploration in search of territory and riches. But when they reached the South Pacific, they found they had been beaten there by a more humble traveler: the sweet potato. Now, a new study suggests that the plant's genetics may be the key to unraveling another great age of exploration, one that predated European expansion by several hundred years and remains an anthropological enigma.
Humans domesticated the sweet potato in the Peruvian highlands about 8000 years ago, and previous generations of scholars believed that Spanish and Portuguese explorers introduced the crop to Southeast Asia and the Pacific beginning in the 16th century. But in recent years, archaeologists and linguists have accumulated evidence supporting another hypothesis: Premodern Polynesian sailors navigated their sophisticated ships all the way to the west coast of South America and brought the sweet potato back home with them. The oldest carbonized sample of the crop found by archaeologists in the Pacific dates to about 1000 C.E.—nearly 500 years before Columbus's first voyage. What's more, the word for "sweet potato" in many Polynesian languages closely resembles the Quechua word for the plant....
comments powered by Disqus
- 5 Ways to Rebuild Labor and Transform America
- Trump's Praise for China over Tiananmen Square Years ago was a Preview of his Support for Military Crackdowns on the George Floyd Protests
- For the First Time in 30 Years, Hong Kong Will Not Hold a Mass Vigil Commemorating the Tiananmen Square Massacre
- America's New Nihilism
- National Museum of African American History and Culture Releases “Talking About Race” Web Portal
- Why Teachers, Not Reformers, Should “Reimagine Education”
- COVID, Race, and a Pivotal Moment for America
- The Memo: Trump Lags in Polls as Crises Press
- Explaining the Insurrection Act of 1807 and Looking Back on Nixon’s Law & Order Campaign (Podcast)
- Trump Declared Himself the 'President of Law and Order.' Here's What People Get Wrong About the Origins of That Idea