Wide-Legged Gait
Henry started walking right around the end of thirteen months. He's been practicing, and at fourteen months and one week, here's what it looks like. Jonathan noted that he has a wide-legged gait; I imagine many toddlers start out that way.
(I think he became more motivated to walk when he figured out that he can suck his thumb and be mobile at the same time that way -- not so easy while crawling.)