New ask Hacker News story: How was the oldest law (Code of Ur-Nammu)deciphered?

How was the oldest law (Code of Ur-Nammu)deciphered?
2 by celestiallylvd1 | 0 comments on Hacker News.
All I could find was a photograph at https://ift.tt/kR2sBfV, and an English translation in Wikipedia. But the intermediate steps are missing documentation.