The Caribbean was one of the last parts of the Americas to be settled by humans, although scientists don’t agree on when the first settlers arrived or where they came from. Some argue that people probably arrived from the Amazon Basin, where today’s Arawakan languages developed, while others suggest that the first people to settle the islands came from even farther west, in the Colombian Andes.

“The differences in opinion illustrate the difficulty of tracing population movements based on a patchy archaeological record,” wrote archaeologist Hannes Schroeder of the University of Copenhagen, Denmark, and his colleagues. Schroeder’s research team has a new study on the genetics of the long-lost Taino people, which gives some clear indications of their origin and where they went after European colonization.

Complex social networks linked the islands

The Bahamas weren’t settled until 1,500 years ago. The people who settled there are known as the Lucayan Taino, and they and the other Taino communities of the Caribbean were the natives who met the first Spanish colonists in 1492. At the time, the Taino were thriving; Spanish priest Bartolomé de las Casas estimated that about 600,000 people each lived on Jamaica and Puerto Rico, with as many as a million on Hispaniola. That didn’t last long; by the mid-16th century, smallpox and slavery had driven the Taino to the brink of extinction.