Not definitively proving anything, just saying.
Theres was nobody left to have memories and write an account...
They were all drownws...
Only Noah and Mrs Noah and their 3 sons and their wives were saved in the Ark...
Question: if everyone but Noah and family were wiped out, how would current Samarians have any memory of it?
Actually, the Sumerian king list was carved on a clay prism, and breaks the kings into two groups, “Before the Flood” and “After the Flood”.
It sets out dynasties in order, but various inscriptions and chronicles show that these were not serial but parallel dynasties, ruling the various city-states, rather than a series of one supreme ruler.
“The Flood” isn’t (as Woolley claimed from his excavation evidence) a reference to a worldwide flood. The thick strata of sand that caps off one earlier level of occupation with the subsequent one was an alluvial fan, and not found in other sites from the same time.
https://www.ashmolean.org/sumerian-king-list
There’s also this legend:
https://www.britannica.com/topic/Utnapishtim
“If there really were a flood, the Sumerians would have recent memories of it before the Biblical account was written.”
There was a flood, geology proves it. And you are absolutely right, It was documented by the Sumerians first.
There are accounts of the flood from almost every ancient civilization that has extant records. Clearly something happened.