Tattoos are a type of art that’s added permanently to a person’s skin using special inks and needles. It’s a way of decorating the body that has been around for a long time. But how long? When were the earliest tattoos?  We asked sociologist David Lane to help us find the answer.

Got a question that’s really needling you? Send it to us at BrainsOn.org/contact, and we’ll poke around until we find the answer!