"Legend has it that Arab camel drivers inspired the modern IUD. According to the story, tiny stones were inserted into the uterus of each female camel to prevent pregnancy during long caravan journeys across the desert (Bullough & Bullough, 1990). The story was a tall tale told to entertain delegates at a scientific conference on family planning, but it was repeated so many times that many people have assumed it is true (Thomsen, 1988)."