Oct. 20, 2006 —New evidence from soil inside the remains of a 5,600-year-old corral indicates that the ancient Botai people of Kazakhstan were among the earliest to domesticate horses. But equine romantics might be disappointed to learn that the Botai probably ate and milked their horses as often as they rode them.
The corrals are part of an archeological site in northern Kazakhstan known as Krasnyi Yar, once a large village occupied by the Copper-Age Botai, said Sandra Olsen, curator at the Carnegie Museum of Natural History in Pittsburgh, Penn.
Olsen leads a team that has been investigating horse domestication for several years. One of her colleagues, Rosemary Capo, will present a poster with some of chemical soil evidence for horses on Oct. 23 at the annual meeting of the Geological Society of America in Philadelphia.
"We really don't understand any major signs of changes in horses with domestication," said Melinda Zeder, an archaeologist at the Smithsonian Institution who specializes in the origins of animal and plant domestication.
Zeder was referring to physical changes in horse bones from ancient middens. Nor, so far, is there a direct way to determine what people were doing with their horses that early on, she said. For these reasons she and her colleagues have been building their case with less direct evidence.
"Here's an approach to documenting horse domestication that's extremely new," said Zeder. "Sort of like Perry Mason, they're building circumstantial evidence."
That evidence comes from circular arrangements of posts and the soil differences found inside and outside the corral. Inside the corral, the soil contained up to ten times the phosphorus as outside soils, but lower concentrations of nitrogen. That's what you'd expect if the soil there was enriched with horse manure.
