>>1152496A question of perspective, formed by information. If I was to tell you that there's a massive burning gas ball floating around a rather tiny whole in space that attracts billions of similar massive burning gas balls, you could revert to your false skepticism and harp about how extraordinary that is. Or you take a look into the sky and through a telescope and discover that stars such as our sun are present all across our galaxy.
Whether some thing is ordinary or not is completely dependent on subjective perception. So, please let me know, how many ancient texts have you read? It's rather common for ordinary people to have that number at exactly 0, with a little luck there are Roman or Greek texts taken into account, pushing it slightly to a dozen or so.
I'm pretty sure that given the expected 0 reference texts from Sumer, Akkad, Ugarit, India, etc. everything actually written down in antiquity is extra-ordinary for you. But that is your subjective flaw due to excessive lack of education, not humanity's for reporting on events over the past millennia in great, coherent detail.