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| | U. S. Postal History Timeline (Site not responding. Last check: 2007-09-19) |
 | | Many transportation events in postal history were marked by great demonstrations: the Pony Express for example, and scheduled airmail service in 1918. |
 | | History proved differently, but this experiment with missile mail exemplifies the pioneering spirit of the Post Office Department when it came to developing faster, better ways of moving the mail. |
 | | The existence of postal zones in the larger cities, set in motion in 1943, helped to some extent, but, in cases where the old zones failed to fit within the delivery areas, new numbers had to be assigned. |
| www.slahs.org /history/local/postal/timeline.htm (6428 words) |
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