29 January 1536

Anne Boleyn miscarries a baby boy.

Boleyn caught her husband Henry VIII doin' the nasty with Jane Seymour, and this caused her to miscarry her fetus, which turned out to be male. Not a good thing, as Henry was already getting sick of his second wife, especially because she had so far failed to deliver an heir (Elizabeth, born in 1533, didn't count). History may have been changed if Anne hadn't miscarried, because who knows if the kid would have been more healthy than Edward VI, Jane Seymour's child. Whatever else, the miscarry sealed Anne's fate - three months after the death of the child, Henry had her executed.