Originally Posted by atpcliff

If you want written evidence of UFOs, you can read all about the Sumerians. They are the first civilization that started writing down their history, in about 4000 BC. There are tens of thousands of clay tablets, that explain how they got almost every possible basic technology and science that comprises our modern civilization. Their knowledge of so many areas is astounding, including about knowing all about the planets in our solar system, including the ones that cannot be seen with the naked eye, and massive information about astronomy, including the 36,000+ year cycle of the precession of Our Earth about it's axis, that makes up the 12 Ages of the Zodiak. It's hard to figure out a 36,000 year cycle, when you are living a 40-80 year lifespan.