Just a slow moving white dot in the black sky, what could it have been?
Dentistry is 9000 years old WASHINGTON: Proving prehistoric mans ingenuity and ability to withstand and inflict excruciating pain, researchers have found that dental drilling dates back 9,000 years. Primitive dentists drilled nearly perfect holes into live but undoubtedly unhappy patients between 5,500 BC and 7,000 BC, an article in Nature reports. Researchers carbon-dated at least nine skulls with 11 drill holes found in a Pakistan graveyard. That means dentistry is at least 4,000 years older than first thought and older than the invention of anaesthesia. This was no mere tooth tinkering. The drilled teeth found in the graveyard were hard-to-reach molars. And in at least one instance, the ancient dentist managed to drill a hole in the inside back end of a tooth, boring out toward the front of the mouth. The holes went as deep as one-seventh of an inch. The holes were so perfect, so nice, said study co-author David Frayer, an anthropology professor at the University of Kansas. I showed