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  I don't know specific date of yellow fever, but I do know that it orginated in Africa. It then it was brought to the New World during the slave trade of the 1500s.
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  Due to yellow fever people were quarantined to their homes.
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  In 1699 yellow fever spread to the American Colonies via the slave trade.
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  Yellow fever wipes out the population of Philadelphia.
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  Yellow fever travels to the Mississippi Valley and people begin dying.
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  Carlos Finlay identifies a suspect for yellow fever.
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  Bacterium was mistakenly blamed for the yellow fever epedemic.
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  US Army researchers discover the cause of yellow fever.
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  Efforts begin to control the yellow fever disease.
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  North America see the last yellow fever epidemic.
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  The Rockefeller Foundation forms a commission to oversee the yellow fever epedemic.
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  Max Theiler begins to work on his vaccination for yellow fever.
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  Max contiues to work on finding a vaccination for yellow fever.
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  Max finally found a vaccination which helped with the yellow fever epedemic.
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  Max wins a Nobel Prize for his work on the yellow fever vaccination.
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  United States begins working on protecting Americans from mosquitos who could be carrying the disease.
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  Yellow fever is found in patients in South America.
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  Infected people were dying due to yellow fever.
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  Due to new cases and deaths, more research is happening and vaccination efforts are being supported.
