Researchers like Zecharia Sitchin propose that a advanced race of extraterrestrials once visited our planet, imparting Knowledge hitherto unavailable to humanity. Some UFO theorists also think that the sudden appearance of a uniform code of law, the wheel, knowledge of astronomy and agriculture, and elaborate temples inscribed with cuneiform or heiroglyphic script, could not have spontaneously emerged as they seem to have done between 3400 and 3100BC. Endorsing the idea of Paleoc ...