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postal codes: Media

location identifier

Videos

The 250-Year-Old History of American Mail
The mail must go through. Mush!
Video: Encyclopædia Britannica, Inc.
What are zip codes?
Up to 60 percent of your health is determined by social and economic factors—including...
Video: Encyclopædia Britannica, Inc.

Images

United States Postal Service letter carrier
United States Postal Service letter carrier delivering mail.
ZUMA Press Inc/Alamy