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An old engraving of an early example of an electric light c.1870. It is from a Victorian book of the 1880s. English chemist Humphry Davy developed the first incandescent light in 1802,
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An old engraving of an early example of an electric light. It is from a Victorian mechanical engineering book of the 1880s. English chemist Humphry Davy developed the first incandescent light in
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Who invented the lightbulb and when?
