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first post office in america opened boston massachusets.
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bengamin franklin named the first u.s post master general
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the constitution gives congress the right to establish post offices and postroads.
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first delivery of mail by railroad.
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the first postage stamps are printed 5 cents ben franklin and 10 cents for a goarge washington.
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the pony express begins carrying across the west
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new postage rates are interduced base on whieght instead of distance.