| Eighteenth
Century Advances |
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| • | 1790 George
Washington ordered the first US |
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| census (done
every ten years since) |
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| • | 1796 Edward
Jenner demonstrated vaccine |
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| against small pox
by injecting a boy with |
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| cowpox. |
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| • | 1798 Marine
health center (will become US |
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| Public Health
Service) |
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| • | 1799 Municipal
boards of health in major cities |
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