Trying to learn more of the difference between UPS and Fed Ex. Currently, I know UPS has been around much longer. Fed Ex started out mostly as an air delivery operation and UPS was mostly a ground operation. Since then, they have both purchased other small companies and thus somewhat equallized their differences. In the 1980's, UPS bought their own aircraft and they too began next day delievery. Any information regarding these 2 companies' differences is greatly appreciated.