Certainly, the story about Adam and Eve being the first people on earth does seem unlikely. But then, the authors didn't know anything about evolution, and they no doubt thought that it was up to them, as learned people, to come up with something plausible.
there is no indication that the authors of the Bible had any sort of opinion of the nature of the earth and solar system generally. Though there is clear evidence, BC, that there was some level of understanding of planetary mechanics. indeed the very word "planet" is from the ancient greek for wanderer. The Koran is more or less identical to the bible.
Islam uses the Hijri Calendar based on the moon, so it is 11 days shorter than the actual year, that is why all their months are wrong, the one we know most about in the west is Ramadan and that is 11 days earlier each year. I worked on the Barclays bank Islamic "mortgages" system - usery is not allowed under Islam thus they buy a house like an HP deal with "fees"!