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Uncle Sam Unit 24, 25, & 26 Test
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Almon Strowger invented this, which allowed telephone users to call each other directly.
automated switchboard
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This is the system of ZIP codes introduced by the Postal Service.
Zone Improvement Plan
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This is the most famous government telephone.
hotline
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This enables writers and inventors to benefit from their creativity.
patent and copyright protection
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1792
Post Office Department was created.
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This is broadcasting interference that keeps people from hearing real broadcasts.
Jamming
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This is the one way that technology has affected civic life.
making information available
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These transmit digital signals to towers, and each tower covers a certain area.
cell phone
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This enables Americans to pursue their interests with energy and enthusiasm.
political freedom
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This is sorting mail by shape and separating letters from larger envelopes and packages.
culling operation
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1963
US Post Office began using ZIP codes.
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1872
Postmaster General became a member of the President's Cabinet.
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Reasons the FCC (Federal Communications Commission) forced AT&T to break apart into smaller regional companies.
1.Controlled phone lines. 2.Controlled pricing. 3.Greater access to many. 4.Prevented a monopoly
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How technology has furthered Christianity
1.Television programs. 2.Radio programs. 3.Websites. 4.Digital Bibles (like YouVersion). 5.Online churches.
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1971
Post Office became an independent agency called the United States Post Office.
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1775
Benjamin Franklin appointed first Postmaster General.
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The service that became this began broadcasting in 1942.
Voice of America
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