Sarah Albee
Writer of
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Pox Stoppers
Posted
May 16, 2013
Smallpox inoculations were used in India as early as 550 AD.
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The ancient Roman engineers developed the first form of central heating, using terra cotta tubes that transported hot exhaust from a basement fire. But the technology was lost with the fall of Rome. Panati’s
Extraordinary Origins
(131)
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