The Postal Service Act[?] signed by President George Washington on February 20, 1792 established the Department.
... 24, 33.8% from 25 to 44, 21.3% from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. Fo ...