Going medieval on the female reproductive system

Speaking of Todd Akin, Cory posted yesterday about the history of the bogus idea that women who were raped (excuse me, "legitimately" raped) can't get pregnant from it, citing a medical/legal text from 1785. In a story at The Week, we learn that this particular bit of misinformation is, in fact, even older than that, dating back to 1290. So Akin is propagating a belief that has been spread—despite a complete lack of evidence to support it—since the 13th century. Good times.