The father of my colleague Carla Davidson was a newspaperman back in the racy violence of the Front-Page days; he was also an accomplished novelist and television writer and a historian of wide interests. But he never could bring himself to care much about what he called “short-pants history,” by which he meant that time in America before modern accessories like railroads had started to build the country we inhabit today. I know what David Davidson was talking about: the faintly claustrophobic world of wigs and quill pens and the grave men at the convention we see pictured on our money and trying to read a page where, as Thomas Pynchon put it, the S ’s look like F ’s.