On this week's episode of The Shakeout, a running podcast by Canadian Running Magazine, editor Michael Doyle and podcast producer Joan Chung look back at the history of the New York City Marathon. The race had remarkably humble beginnings, held within Central Park with just 127 on the start line, and only 55 finishers. Of course, the TCS New York City Marathon has evolved into a five-borough tour of the city and the single biggest marathon in the world, with over 51,000 runners. We tell you the fascinating history of this special race.