What is the history of the Sahara Desert?

The Sahara Desert, now the largest hot desert in the world, has a complex history shaped by climatic changes over millennia. Approximately 10,000 years ago, it was a lush region with lakes, rivers, and vegetation, inhabited by various cultures. As the climate shifted towards aridity around 5,000 years ago, the landscape transformed into the desert we see today. This transition influenced human migration, trade routes, and the rise of civilizations in and around the Sahara.