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India's contributions to science, technology and crafts are well documented, if not widely known. For example, before the British arrived, Indians had a system of inoculation against smallpox; year-old live smallpox matter was used, and it was very effective. Inocultators would fan out into the country before the smallpox season in the winter. The British doctor J Z Holwell wrote a book in 1767 describing the system and how it was safe. European medicine did not have any treatment against this disease at that time.

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12y ago

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