Mesopotamia

Mesopotamia refers to the region
now occupied by modern Iraq, eastern
Syria, and southern Turkey

Mesopotamia (Hebrew: ארם נהרים 'Aram Naharayim "Aram of the two rivers" from אָרַם 'Aram "exalted" and נָהָר nahar "stream, river" or "to flow, flow together" see Isaiah 2:2)  refers to the region now occupied by modern Iraq, eastern Syria, and southern Turkey . The name comes from the Greek words μέσος "between" and ποταμός "river", referring to the area between the Euphrates and the Tigris (the Arabic term is بين نهرين Bayn Nahrain "between two rivers"). The fertile area watered by these two rivers is known as the "Cradle of Civilization," or "cradle of humanity" and it was here that the first literate societies developed.

The biblical Patriarch Abraham was from Ur in Mesopotamia.

¹⁰ Then the servant took ten of his master’s camels and departed, taking all sorts of choice gifts from his master; and he arose and went to Mesopotamia to the city of Nahor. ¹¹ And he made the camels kneel down outside the city by the well of water at the time of evening, the time when women go out to draw water. ¹² And he said, "O LORD, God of my master Abraham, please grant me success today and show steadfast love to my master Abraham. ¹³ Behold, I am standing by the spring of water, and the daughters of the men of the city are coming out to draw water. ¹⁴ Let the young woman to whom I shall say, 'Please let down your jar that I may drink,' and who shall say, 'Drink, and I will water your camels'—let her be the one whom you have appointed for your servant Isaac. By this I shall know that you have shown steadfast love to my master."

¹⁵ Before he had finished speaking, behold, Rebekah, who was born to Bethuel the son of Milcah, the wife of Nahor, Abraham’s brother, came out with her water jar on her shoulder. ¹⁶ The young woman was very attractive in appearance, a maiden whom no man had known. She went down to the spring and filled her jar and came up. ¹⁷ Then the servant ran to meet her and said, "Please give me a little water to drink from your jar." ¹⁸ She said, "Drink, my lord." And she quickly let down her jar upon her hand and gave him a drink. ¹⁹ When she had finished giving him a drink, she said, "I will draw water for your camels also, until they have finished drinking." ²⁰ So she quickly emptied her jar into the trough and ran again to the well to draw water, and she drew for all his camels. ²¹ The man gazed at her in silence to learn whether the LORD had prospered his journey or not.
—Genesis 24:10-21 ESV

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Civilisations — Mesopotamia Parts 1-6