I have researched this for many years and what I come up with was in the days of old the bankers and governments used their money for expeditions to find ancient text or technologies of the ancients all over the world and all countries that had the money followed. The things they found that did not match what they were trying to do got sacked, the technologies they found they tweeked, twisted and called it their own and sold it to you, and the world keeps spinning .....