So far as the archæological evidence is concerned, we are still without any great body of documents dated in their reigns, which should definitely prove the rule of the Sea-Country kings in Babylonia. But two tablets have now been discovered in the Nippur Collections which are dated in the second year of Iluma-ilum, the founder of the Second Dynasty.[41] And this fact is important, since it proves that for two years at any rate he exercised control over a great part of Babylonia. Now among the numerous documents dated in the reigns of Hammurabi and Samsu-iluna, which have been found at Nippur, none are later than Samsu-iluna's twenty-ninth year, although the succession of dated documents up to that time is almost unbroken. It would thus appear that after Samsu-iluna's twenty-ninth year Babylon lost her hold upon Nippur. It is difficult to resist the conclusion that the power which drove her northwards was the kingdom of the Sea-Country, whose founder Iluma-ilum waged successful campaigns against both Samsu-iluna and his son Abi-eshu', as we learn from the late Babylonian chronicle.[42] Another fact that is probably of equal significance is that, of the tablets from Larsa and its neighbourhood, none have been found dated after Samsu-iluna's twelfth year, although we have numerous examples drawn up during the earlier years of his reign. We may therefore assume that soon after his twelve years of rule at Larsa, which are assigned to him on the new Kings' List,[43] that city was lost to Babylon. And again it is difficult to resist the conclusion that the Sea-Country was the aggressor. From Samsu-iluna's own date-formulæ we know that in his twelfth year "all the lands revolted" against him.[44] We may therefore with considerable probability place Iluma-ilum's revolt in that year, followed immediately by his establishment of an independent kingdom in the south.[45] He probably soon gained control over Larsa and gradually pushed northwards until he occupied Nippur in Samsu-iluna's twenty-ninth or thirtieth year. [Illustration: X. Brick of Warad-Sin, King of Larsa, recording building operations in the city of Ur]