The bullroarer is an ancient ritual musical instrument and is used to communicate over extended distances. It dates back to the Paleolithic period, found in Ukraine dating from 17,000 B.C. The cord is given a slight initial twist, and the roarer is swung in a large circle in a horizontal plane. The aerodynamics of the roarer will keep it spinning in its axis. In ancient Greece it was a sacred instrument used in rituals.
The bullroarer, rhombus, or turndun, is an ancient ritual musical instrument and a device historically used for communicating over greatly-extended distances. It dates to the Paleolithic period, being found in Ukraine dating from 17,000 BC. Anthropologist Michael Boyd, a Bullroarer expert, documents a number found in Europe, Asia, the Indian sub-continent, Africa, the Americas, and Australia.