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Mail is reduced to once-a-day delivery in the U.S

Date(s)
April 17, 1950
Mail is reduced to once-a-day delivery in the U.S. While this seems at first to be adverse to timeliness, the introduction of this policy organizes sender and receiver expectations and makes time management easier for everyone.
Sources
"Significant Dates." United States Postal Service. Accessed December 16, 2015. https://about.usps.com/who-we-are/postal-history/significant-dates.htm.

"USPS Delivery Truck." Digital image. Wikipedia. Accessed December 09, 2015.
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