Table of Contents
• SIGNIFICANT DATES IN POSTAL HISTORY
• UNITED STATES POSTAL SYSTEMS

• COLONIAL TIMES
• CONTINENTAL CONGRESS
• THE POST OFFICE DEPARTMENT

• PONY EXPRESS
• RAILWAY MAIL SERVICE
• CONFEDERATE POSTAL SERVICE
• FREE CITY DELIVERY
• RURAL FREE DELIVERY
• PARCEL POST
• POSTAL SAVINGS SYSTEM
• AIRMAIL
• MISSILE MAIL
• MULE MAIL
• ZIP CODE

• POSTAL REORGANIZATION ACT
• UNITED STATES POSTAL SERVICE
• POSTAL MECHANIZATION/EARLY AUTOMATION
• ZIP+4
• THE AGE OF AUTOMATION
• COMPETITION AND CHANGE

Credits
All history photographs are from the United States Postal Service
(Extracts Reprinted from The United States Postal Service Website)
The History of the United States Postal Service was created by T. E. Dilley, Frances Feldman, Sally K. Haring, Megaera Harris, Jennifer M. Lynch, Jerry W. Mansfield, Gerald Merna, James K. Meyer, Paula E. Rabkin, Frank R. Scheer, Melody Selvage, Kelley Sullivan and Rita Lloyd Moroney, the first historian of the United States Postal Service.

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