"The first 100 days constitute a magic number in the life of a new national administration." So begins a 1974 letter from the White House that would go on to list the early accomplishments of President Gerald Ford, who had unexpectedly taken office after the resignation of Richard Nixon. Indeed, it may well have been the grim circumstances of his ascension that made Ford so keenly aware of the "magic" period of time between a new president's inauguration and the fizzling out of the "honeymoon period" at the end of month four. The symbolic 100-day benchmark actually dates back to Napoleon Bonaparte's return from exile.