If you believe that they were just created from dust, then no they wouldn't have belly buttons, would they. If you believe in evolution then the first humans would have had belly buttons, just like every other mammal.
I don't think we would have any way of knowing, really. It is possible they were created to look as if they had been born--complete with belly buttons.
No, they did not have belly buttons, the only purpose of a belly button is for an umbilical cord for nutrients during gestation and they were never in utero.
I've read Stitchin's book because I thought he knew what he was talking about translating the Sumerian cuniform of Mesopotamia but I think the guy is nuts.
I do believe some of it - such as Annunaki used surrogate mothers. The Sumerian belief that man was cloned as a self replicating slave.
It make sense to me that there was a bottleneck in population in the human past and that several different versions work 'competed off".
Evolutionary theorist Oliver Curry said that far into the future that "the human race will divide into two subspecies"9 akin to H.G. Well's "Time Machine" - the Eloi and the Morlocks.
That has been answered before, here, from two points of view.
Naturally, the religious wackos were all over that dancing on pin-heads question. I don't recall, and could care less, what the consensus was.
I offer the alternative that the Annunaki needed something to hook up their test subjects to the equipment while they were doing their gene splicing experiments to create "The Adam" from their genes and hominid genes.
But seriously, the Annunaki used surrogate mothers, so yes, their creations and offspring had belly buttons.
BTW, look up gene (chromosome) differences between us and our nearest relatives, such as chimps. You will see some interesting discrepancies.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.