In my previous post, I mentioned I had my own theory about Atlantis, and why some evidence points to an ancient original civilization.
One piece of evidence is that structures like the Pyramids and Stonehenge show knowledge of mathematics and the dimensions of the Earth. I believe this is due to divine revelation. Through dreams, visions, intuition, and direct revelation is where I believe the information comes from.
The Earth, Sun and Moon were created or designed with sacred geometry and numbers. This is reflected in the architecture. The Earth and Moon square the circle. Stonehenge does it in the same exact way, using the same numbers. This is the best example I know of. I posted a video of this phenomenon a while back. You can find it in my post directory. If not, search YouTube for “the Framing of the Earth and Moon”.
Even modern day thinkers, mathematicians and scientists claim to get their ideas through dreams, visions, and intuition. Descartes is one example.
The last reason is that I have personally received like information in these ways. Therefore in my opinion, it is the likeliest explanation for what is going on.