Portrait of a Woman (c. 1870)
"Some persons have the eyebrows meeting over the nose. This is usually considered a disfigurement, but there is no remedy for it. It may be a consolation for such people to know that the ancients admired this style of eyebrows, and that Michael Angelo possessed it. It is useless to pluck out the uniting hairs; and if a depilatory is applied, a mark like that of a scar left from a burn remains, and is more disfiguring than the hair."
John H. Young, Our Deportment (1881)
Here's a novel approach to the unibrow: ditch the tweezers and just tell everyone you're the next Michelangelo.