Answer: However, it was a group known as the Amorites who took control of the city and began to organize it around 1894 BC. In the year 1894, an Amorite dynasty founded the small kingdom of Kazallu, which would eventually expand and evolve as future Amorite rulers gained control. The capital of this little empire was Babylonia. Many rulers contributed to Babylonia's development and growth into an independent nation. Sumu-abum, the first such ruler who was not yet dubbed king, was followed by several more until Sin-Muballit, the first Amorite to proclaim himself king. Things changed in Babylonia in 1792 BC, when Amorite leader and king Hammurabi led the country to become a formidable, but short-lived empire. Along with the far older Assyrian Empire, it was this man who was responsible for the formation and rise of the Babylonian Empire, as well as its extension throughout most of Mesopotamia.