They assist in the release of the soul from the burdens of the world. Yoga translates to "unity."
I believe the answer is The Great Wall of China \(^^\)
I believe your answer is the "Cold War Foreign Policy". Good luck!
No answer for who because the bodies are so old. but the oldest mummy in Egypt is 5000 years old. The oldest mummy in the world is 7000 years old. I know, it seems impossible but that is what I found.