Network of Incubators and Innovators in Nigeria - NINE - Historical Innovations: The Electric light bulb. . Thanks to inventors Humphry Davy, Warren de la Rue, Joseph Wilson Swan and Thomas Alva
![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, 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,](https://c8.alamy.com/comp/2DBYJP1/an-old-engraving-of-an-early-example-of-an-electric-light-c1870-it-is-from-a-victorian-book-of-the-1880s-english-chemist-humphry-davy-developed-the-first-incandescent-light-in-1802-followed-by-the-first-practical-electric-arc-light-in-1806-two-pieces-of-pure-carbon-have-electricity-from-a-powerful-battery-passed-through-them-an-arc-is-created-and-the-carbon-burns-as-well-as-creating-heat-light-is-also-emitted-this-example-by-london-instrument-maker-john-browning-has-a-magnetic-device-to-maintain-a-constant-distance-for-the-arc-and-a-mirror-and-small-shade-to-direct-the-light-2DBYJP1.jpg)
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,
![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 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](https://c8.alamy.com/comp/2DAEB2M/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-1802-followed-by-the-first-practical-electric-arc-light-in-1806-here-two-pieces-of-pure-carbon-have-electricity-from-a-powerful-battery-passed-through-them-by-adjusting-the-gap-between-the-carbon-pieces-a-point-is-found-where-an-arc-is-created-and-the-carbon-burns-as-well-as-creating-intense-heat-light-is-also-emitted-by-the-1870s-the-arc-lamp-was-used-to-light-many-public-spaces-2DAEB2M.jpg)