'On July 1, 1971 the 182-year-old Post Office Department was reorganized into this corporation'
USPS (United States Postal Service)
THE 1970s: On July 1, 1971 the 182-year-old Post Office Department was reorganized into this corporation
On July 1, 1971 the 182-year-old Post Office Department was reorganized into this corporation
On July 1, 1971 the 182-year-old Post Office Department was reorganized into this corporation
THE 1970s
USPS United States Postal Service
THE 1970s