So creditors (initially headed by the palace and temples in Sumer as the major and paradigmatic creditors) developed debt contracts, with a fixed payment. (michael-hudson.com)
It began with the rise of Sumer in the 4th millennium BCE, approximately 3300 BCE, and extended to approximately 1200 BCE. (religion.blogs.cnn.com)
The sons of Noah in the plain of Shinar were documented in Genesis as the origin of the peoples in the land of ancient Sumer where Gilgamesh was King. (religion.blogs.cnn.com)