from about millions ( or even billions ) years ago through the european middle ages , the ancient egyptians ; the mayans , aztecs , and incas in central and south america and mexico ; the palestinians and israelites ; the indians ( on the subcontinent of india ) ; the japanese ; the ancient romans ; and , the british islanders and europeans in the middle ages , there are pictographs , hieroglyphics , oral histories and written accounts of ufos , visitations , and other signs of the presence of those from the mwc even though it was not widely known or accepted until early in 2013 , when they allow me to make our conversations public .