What is the original language of the creation of Babylonia?

The Languages of Babylonia

The people of ancient Babylonia primarily spoke two languages: Sumerian and Akkadian, the latter being the more dominant of the two. The Sumerian language predates Akkadian; it emerged in the southern region of Mesopotamia before the rise of Babylonia, and it became the oldest-known written language after the invention of the Sumerian cuneiform script around 3400 BCE. Despite its decline as a spoken language, Sumerian continued to be used in religious texts and literature.