Also true. If you've ever taken a World History class, you most likely remember people such as Suleiman the Magnificent of the Ottoman Empire, or the more famous Alexander the Great of Greece, or really any Egyptian Pharaoh. These people were practically gods on Earth, who often (unsurprisingly) used tactics of religious belief to convince their followers that they were gods/of the gods. One good example is the Chinese Mandate of Heaven. (Just a little knowledge for you all). Aliens with advanced technology could have the same effect on us that these ancient rulers had on primitive tribes.