Boaters, derbies, fedoras?until just a generation or two ago, a man?s social status, if not his very masculinity, was defined by his hat. For centuries, men owned hats for all seasons and occasions. But in the 1960s, the male hat became obsolete. Just as women shed their white gloves for the sexual revolution, men cast aside centuries of tradition and stopped wearing hats.The hat?s demise has over time been credited to President Kennedy, or Hatless...