the Fertile Crescent had some of the earliest human civilizations, and also has some of the first big high-techstar inventions, like writing, glass, and the wheel. The water sources and soil to grow crops in the area moved many different civilizations over the years to live there. In addition to the important rivers and marsh lands in the Fertile Crescent, the area was also used because of its location as an area that joined the three continents of Asia, Europe, and Africa. As people from these areas began to explore other areas and start trade routes, the Fertile Crescent bloomed as a hub of travel and trade. Changes in the past 30 years have made the Fertile Crescent much less fertile. Using satellite images of the area, scientists estimate
