New York City's unofficial first lady, Diana Taylor, is celebrating her 54th birthday today. Hope Mike got you something nice! Others celebrating: Tom Brokaw is turning 69. Former Daily News gossip columnist Lloyd Grove is 54. Henry Blodget is 43. Chef Marc Murphy is turning 40. Axl Rose is turning 47.…

A professor of history at Columbia, Foner is one of the top authorities on 19th century American history and politics. He's also the ex-husband of Naomi Foner, Maggie Gyllenhaal and Jake Gyllenhaal's mom.