In 1646 an English thinker, Sir Thomas Browne, strongly argued that “Adam and Eve had a perfectly smooth abdomen. Without belly button, since they were not born of a mother”.
The debate comes from the book of Genesis (1491 and 1450 B.C.), which deals with the creation of the world and mankind.
The controversy would be that if Adam and Eve did not have a belly button, they were not perfect human beings. But if they did have a belly button that would imply a birth through childbirth that they had never experienced.
It is difficult to imagine then the extraordinary creation of Adam, who emerged directly from the artifice of God.
Nor that of Eve, who was suddenly formed from one of Adam’s ribs according to the bible.