They could tell that sky is blue and that water flows? Paraphrasing but that's essentially it.
Make up a religion today and you will have more truth than all religions combined, ever.
It was possible to know things 1600 years ago, people weren't dumb so a list of several observations is some undeniable proof, of what?
It is started by humans, that's the only undeniable truth. Trace back any religion you want, it goes back to a human.
Thats all you got from that ?
- It said the Universe is expanding
- Iron isnt from Earth
- Mountains are like stakes
- The Sky is protection from harmful effects of space
- The Sun and Moon are constantly moving
- The two seas are sperate
- Humans are made from water
- The Earth and Universe became seperate
And these are only a few. Yet all you got from all of that is " sky is blue and that water flows". Can you stop being biased and address how a book made 1400 years ago has such facts within it.