"In 1492, Columbus sailed the oceans blue. And brought back syphilis."

Medical researchers have long sought the origins of the sexually-transmitted disease syphilis, but most now believe that the pox was brought back by Christopher Columbus from one of his voyages to the New World. LiveScience recently published an Op-Ed from the Conversation.

Experts used DNA evidence to point the disease's origins to the New World, as well as its virulent rampage through 15th century Europe, which is "consistent with it being introduced to a naive and unprotected host population," although many still argue that evidence older than Columbus' voyage has been found on the continent.

The Conversation article comes down on the side of the Columbus theory, karma, perhaps, for the horrific diseases released by Europeans in the New World.