Why Bookkeepers Don't Rule the World

In reading about the recent discovery of an undated film featuring Babe Ruth, we took notice of one of the clues that could yield the clip's day or origin:

Two college professors separately proposed using the shadows of the flag poles (seen on the field) to determine the position of the sun and, with some serious mathematics, the date of the game. Others noted what appears to be a dirigible in the background over the Bronx and suggested locating dirigible flight schedules.

We stumbled over...