Sahara in no a desert a long time ago.Scientist told that Sahara was an ocean. But it get dry day by day and became a wide desert.
The word “Sahara” means “desert” in the Arabic language. The Sahara is one of the hottest places on earth. September, 1922, the temperature in the Sahara soared to 136 degrees F. At night the temperature can drop below freezing.

