Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
Spurlock Museum
This collection of approximately 1750 inscribed tablets from ancient sites of Umman and Drehem in Mesopotamia dates from the Third Dynasty of Ur in the 21st and 20th centuries BCE to the Neo-Babylonian and early Persian periods(ca. 625-520 BCE). This collection includes texts written in both the Sumerian and the Akkadian languages. The script called cuneiform, is the earliest writing system in the world.