Boomerang is a curved flat piece of wood that can be thrown so that it will return to the thrower. It is traditionally used by the Australian Aboriginal people as a hunting weapon. Traditionally, it is made of wood. The earliest people who made and used boomerangs were the black Aborigines of Australia. Drawings of boomerangs being thrown at animals, such as kangaroos, appear in some of the oldest rock art such as the Indigenous Australian rock art of the Kimberly region. It is quite shocking that a people thought of or portrayed by non-blacks as primitive and uncivilized could invent such a genius thing many centuries ago. Their ingenuity should be acknowledged.