SARA views the Sahara with a deep-time perspective. The Sahara, the greatest of all deserts, has a volatile climate history which makes the observation of successful and long-term social complexity an extremely significant one. The Sahara, much like the Amazon, is one of the last great unexplored regions in the world. While many nations have sent expedition parties full of explorers and scientists across the vast expanses of desert, in all actuality we are only now just beginning to draw out information about the early complex societies that once inhabited this region.