On this day

20 April in history.

5 moments from 1535 to 2008: discovery, creativity and courage, each with a source to read more.

5 moments

Danica Patrick

2008

Wikipedia: Danica Patrick

Photo: USDAgov / Wikimedia Commons (Public domain)

More from 20 April

  1. Vädersolstavlan

    1535

    The sun dog painting

    Strange rings and extra suns were seen in the sky over Stockholm. The painting made of the scene is the oldest known colour picture of the city.

    Photo: Jacob Heinrich Elbfas / Wikimedia Commons (Public domain)

  2. Studio portrait of Louis Pasteur, restored (removed dust, scratches, and what looked to be a water stain)

    1862

    Germs don't appear from nowhere

    Louis Pasteur and Claude Bernard finished an experiment showing that life does not spring up by itself in food. Germs come from other germs.

    Photo: Paul Nadar / Wikimedia Commons (Public domain)

  3. Depicted person: Marie Curie

    1902

    The Curies purify radium

    Marie and Pierre Curie, after years of hard work in a shed, produced pure radium chloride from tonnes of ore.

    Photo: Henri Manuel / Wikimedia Commons (Public domain)

  4. Billie Holiday

    1939

    Billie Holiday records Strange Fruit

    Billie Holiday recorded a haunting song against lynching. Many radio stations refused to play it, but it became a landmark of the civil rights movement.

    Photo: William P. Gottlieb / Wikimedia Commons (Public domain)

Moments chosen for discovery, creativity and courage. Each one links to a source where you can read more; photos are credited to their owners.