5000 years ago pastoralists in Kenya created a burial site with a specific plan. For at least the next 400 years, possibly as long as 800 years, over 500 people of all ages and classes were buried with amazing precision and care. With no system of writing it's unclear how they accomplished this. Dr. Elizabeth Sawchuk, one of the researchers on the project, gives us some insight into life around Lake Turkana 5000 years ago and about the people buried there.