First Sealand dynasty (c. 1732–1460 BC)

Babylon remained a minor territory for a century after it was founded, until the reign of its sixth Amorite ruler. Hammurabi ruled Babylon from about 1792 to 1750 BC. He is noted for his surviving set of laws, once considered the oldest promulgation of laws in human history.

After the death of Hammurabi, his empire began to disintegrate rapidly. Under his successor Samsu-iluna (1749-1712 BC), the far south of Mesopotamia was lost to a native Akkadian king, called Ilum-ma-ili, Ili-ma-ilu, the founder of the First Sealand dynasty, probably around 1720 BC.

The Sealand Dynasty remained free of Babylon for the next 272 years. The Sealand Kingdom formed as a secessionist state in the area corresponding roughly to ancient Sumer, arose from the rebellion against Babylonian hegemony, outlived the Amorite dynasty in Babylon, before being reclaimed by Babylon under Kassite rule.

The dynasty, which had broken free of the short lived, and by this time crumbling Old Babylonian Empire, was named for the province in the far south of Mesopotamia, a swampy region berefts of large settlements which gradually expanded southwards with the silting up of the mouths of the Tigris and Euphrates rivers.
First Sealand dynasty (c. 1732–1460 BC)