What is the original language of the creation of Babylonia?

A Brief History of Babylonia

Babylonia emerged as a powerful kingdom in ancient Mesopotamia around 1894 BCE, with the establishment of the city-state of Babylon. The civilization reached its peak under the rule of Hammurabi, the sixth king of the first Babylonian Dynasty, who successfully expanded the kingdom's territory, bringing much of ancient Mesopotamia under Babylonian control. Babylonia went on to flourish under several dynasties, including the Kassites and the Chaldeans, until it was eventually conquered by the Persians in 539 BCE.