Aside from the dubious aforementioned cave painting, a reputed condom of antiquity was depicted in a 3,000-year-old Egyptian illustration. Throughout the ages before the handy rubber version was invented, condoms were mostly fashioned of animal parts, particularly bladders and intestines. These date back at least as far as ancient Rome, where segments of animal bladders and intestines would be cleaned and then tied in a knot on one end. Casanova, an apparent pioneer in birth-control methods, reportedly used a sheep-bladder condom festooned with pink ribbons. In the late 1800s, an immigrant to New York named Julius Schmid used “extra sausage casings from butcher shops” to found a “condom empire” that persists in the modern brand names Sheik and Ramses.