Researchers May Have Discovered the Oldest Known Roman Sex Toy The Vintage News The oldest dildo in the world is approximately 28,000 years old. It was discovered in 2005 in Tbingen, Germany by archaeological researchers at the university there. It is eight inches long and " The Surprising History of Dildos: Humans Have Been Using Them for Over 28,000 Years The long and satisfying 28,000 year history of the dildo PHOTO Roman era 'wooden phallus' found: Is this the oldest sex toy? Free press Ancient 'sex toy' could be the oldest and most used in Britain, experts say