An interesting article.
But with a very ‘soft’ approach on uncomfortable issues. Despite this, people do not past responses…
It should be noted that the writing has also be invented by the Elam neighbour, at the same time : circa 3300 BCE
This should raise questions. As it is unlikely that the Sumerians appeared there with the writing already invented.
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On the Bible issue, there are many important items which have been ‘borrowed’ from Sumerians, Ancient Egyptians, Ugaritic people, original Zoroaster, …