Answer:
In the Middle-East, in Mesopotamia (between the Tigris and Euphrates), the Levant (Syria, Lebanon, Israel, Palestine, and Jordan) and Nile Delta in Egypt.
Explanation:
The Fertile Crescent is a historical region that corresponds to part of the territories of the Mediterranean Levant, Mesopotamia and Persia. It is considered to be the place where the Neolithic revolution originated in the West. Today, it occupies the territory of modern Lebanon, Israel, Syria, Iraq, southeastern Turkey, and northwestern Jordan.
The term was coined by archaeologist James Henry Breasted (University of Chicago) by the crescent shape of the geographic area referred to. By historical similarity, other territories where agriculture and livestock arose were also called this way: the Mexican highlands (corn culture), certain regions of China (rice culture), the South American Andes (potato culture) or Africa sub-Saharan (sorghum culture).
It is washed by the Nile, Jordan, Orontes, Tigris and Euphrates rivers and would occupy about 500,000 km². The region would comprise from the Nile valley and the eastern shore of the Mediterranean to the north of the Syrian desert, and from northern Arabia, all of Mesopotamia to the Persian Gulf.