
1997
Harry Potter is published. J. K. Rowling's first Harry Potter book came out in Britain. Several publishers had turned it down.
Wikipedia: Harry Potter and the Philosopher's StonePhoto: Daniel Ogren / Wikimedia Commons (CC BY 2.0)
5 moments from 1886 to 1997: discovery, creativity and courage, each with a source to read more.
5 moments

1997
Photo: Daniel Ogren / Wikimedia Commons (CC BY 2.0)

1886
Chemist Henri Moissan isolated the element fluorine, which had defeated others for decades. He later won the Nobel Prize.
Wikipedia: Henri MoissanWikipedia: Fluorine
Photo: sv:Generalstabens litografiska anstalt / Wikimedia Commons (Public domain)

1909
London's Science Museum became a museum in its own right. Today it welcomes millions of visitors.
Wikipedia: Science Museum, London
Photo: Shadowssettle / Wikimedia Commons (CC BY-SA 4.0)

1945
Delegates of 50 nations signed the charter of the United Nations in San Francisco.
Wikipedia: Charter of the United Nations
Photo: United Nations. / Wikimedia Commons (Public domain)

1974
A pack of chewing gum became the first product sold using a barcode scanner, in a supermarket in Ohio.
Wikipedia: Universal Product Code
Photo: toguro / Wikimedia Commons (CC0)
Moments chosen for discovery, creativity and courage. Each one links to a source where you can read more; photos are credited to their owners.