On this day in 1963, the ZIP Code was introduced as part of a nationwide effort to improve the speed of mail delivery in the United States.See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

On this day in 1963, the ZIP Code was introduced as part of a nationwide effort to improve the speed of mail delivery in the United States. See omnystudio.com/listener for privacy information.

On this day in 1963, the ZIP Code was introduced as part of a nationwide effort to improve the speed of mail delivery in the United States.See <a href="https://omnystudio.com/listener" rel="noopener noreferrer">omnystudio.com/listener</a> for privacy information.

The U.S. Postal Service introduces the ZIP Code - July 1st, 1963

From the desk of “Stuff You Missed in History Class,” “This Day in History Class” quickly recounts a tidbit from today’s events in history.

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The U.S. Postal Service introduces the ZIP Code - July 1st, 1963

The U.S. Postal Service introduces the ZIP Code - July 1st, 1963