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A LITTLE SOMETHING WORTH KNOWING

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HistoryOne small ahaInvention or discovery

His Menlo Park team developed a commercially practical incandescent lamp and an associated electric-lighting system.

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HistoryOne small aha
Your new ahaThomas Edison

Thomas Edison was born in Milan. Source: Wikidata: Thomas Edison ↗

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  1. 21These American brothers achieved controlled, sustained powered airplane flight at Kitty Hawk in 1903.RECALL
    Wright brothers

    Flew in 1903

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  2. 22This Russian chemist organized a periodic table that left gaps for undiscovered elements.RECALL
    Dmitri Mendeleev

    Predicted missing elements

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  3. 23He demonstrated protection against smallpox using cowpox material in 1796.RECALL
    Edward Jenner

    His 1796 experiment helped launch immunology

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