Answer: Tigres and Euphrades (Tigris and Euphrates)
Explanation: Tigris and Euphrates are rivers, in whose valleys the first known world civilization, the Sumerian civilization in Mesopotamia, was conceived. The very name Mesopotamia means between rivers, and it should be emphasized that the beginning of civilization is considered when peoples began from the nomadic lifestyle to form the first settlements, organize farms and cultivate land. Thus, the beginning of farming marked the beginning of civilization, because by producing enough food, development was possible, considering that all surpluses could be exchanged and gradually creating wealth. Mesopotamia, with its relief and position between the two rivers, was an ideal place for this.