A military aristocracy called the Kassites originated in Lorestan, which means
"Land of the Lurs" (modern southwest Iran).
They attacked Babylonia during the reigns of
Samsu-Iluna (1749-1712 BC) and Abi-Eshuh (1648-1620 BC), but were repulsed.
Circa 1595 BC, Hittites sacked
Babylon. Kassites seized
Babylonia in 1570 BC, started the "Dynasty of the Sealand," and renamed Babylon as
Karanduniash. They later built a capital at Dur-Kurigalzu,
in honor of King Kurigalzu I.
Kassites consolidated Babylonia from a network of allied cities into a unified state. They also
expanded trade with Assyria. In the mid 18th century,
King Burna-Buriash I signed a border treaty with rulers of Egypt,
Elam and the Hittites. Relative peace prevailed
until an Assyrian king, Ashur-uballit I (1365-1330 BC), sacked Babylon to avenge the murder of his
son-in-law, Kassite king Burma-Burias II. He installed Kurigalzu II as the first in a series of
puppet rulers. Tukulti-Ninurta I of Assyria conquered the Kassites and ruled in Babylon from 1235 to 1227 BC.
He later appointed a Kassite puppet king. In the 12th century BC, Elamites likewise invaded
Babylonia. Kassites briefly regained independence (1025-1004 BC) before falling to the