Text
The Sumerian King List
A Sumerian text, best known from the Weld-Blundell prism of about 1800 BCE, listing kings before and after the Flood. Its eight antediluvian kings total 241,200 years.
Natritmeyer, “Tablet of Shamash”, CC BY-SA 4.0, via Wikimedia Commons
The list is older than Berossus by fifteen centuries and gives different names, a different count of kings, and a different total. Both texts use the sar and the ner, 3,600 and 600, as their units. If the long reigns encoded one cosmic number, the two sources would be expected to agree. They do not. What they share is the unit system.