DCSIMG
1808
1859
1885
1917
1936
1968
1988
1997
2005
Today

The United States Postal Service is a vast, intricate network more than 200 years old and it connects us all. Its mission is to provide service to a growing population with hundreds of millions of delivery locations. Achieving this mission is an ever-evolving challenge of engineering and imagination.

For more than two centuries, the postal system has adopted and invented a remarkable array of new systems and technologies to get the mail into your hands.

The above video, All Systems at Work, shows how letters, catalogs, magazines, and parcels make their way through mail centers. Click the "full screen" button ( full screen icon ) in the lower right corner of the above video to watch full-screen. [View captioned video]