Everyone (a) that humans have been flying for only a few hundred years. But (b) it possible that ancient civilizations also had the ability an technology to fly?
In the Nazcan Desert in southern Peru, there are hundreds of lines which an ancient culture drew in the dust. On the ground, they just (c) like straight lines. but when you (d) them from the air, you (e) exactly what they are. They are incredible and enormous pictures.