A new claims that the of modern humans is in Botswana. The study is published in the journal 'Nature'. Researchers in the study said they used DNA to find out where humans came from. The researchers believe we all have in a region of northern Botswana, of the Zambezi River. Humans were there 200,000 years ago. They lived for at least 70,000 years before they moved around the African . They started migrating to what is now Europe and Asia. Researcher Professor Vanessa Hayes, from the University of Sydney in Australia, said: "We've known for a time that modern humans originated in Africa 200,000 years ago."
The researchers pinpointed an called Okavango as being the we come from. There used to be a huge there but it is now salt flats. The people had to water, hunting and farmland. Scientists analyzed DNA samples from 200 people who live near the area . They are from the Khoisan people. The Khoisan now live in modern-day South Africa and Namibia. They had a lot of DNA called L0, which is the form of DNA known to be inside . Professor Hayes explained why L0 is . She said: "Every time a new migration occurs, that migration is recorded in our [L0 and] DNA as a time-stamp.... Everyone walking around ...comes from this region."