He dated this version to around 2600 BCE based upon similarities to tablets found in Shuruppak and dated to a similar age by Anton Deimer in the 1920s.[22] Subsequent radiocarbon dating of samples taken from Tell Abu Salabikh date the site to 2550-2520 BCE however, a timeframe slightly more recent than the one Biggs proposed.[23] Biggs recognized various differences in the archaic cuneiform and that "the literary texts of this period were unrecognized for so long is due to the fact that they present formidable obstacles to comprehension". He suggests that Abu Salabikh could have been the location of Kesh, however points out that it is not near Adab as described and that Kesh could have just been a variation in the spelling of Kish. He discusses how the hymn is preserved for so long in later Nippur texts, saying "Although the Abu Saläbikh copies are approximately eight centuries earlier than copies known before, there is a surprisingly small amount of deviation (except in orthography) between them.