
1940
The Lascaux cave paintings. Four teenagers and a dog found a cave in France covered in paintings of animals about 17,000 years old.
Wikipedia: LascauxPhoto: EU / Wikimedia Commons (Public domain)
5 moments from 1906 to 1966: discovery, creativity and courage, each with a source to read more.
5 moments

1940
Photo: EU / Wikimedia Commons (Public domain)

1906
The Newport Transporter Bridge opened in Wales, carrying people and vehicles across the river in a hanging gondola.
Wikipedia: Newport Transporter Bridge
Photo: WelshDave / Wikimedia Commons (CC BY-SA 4.0)

1910
Gustav Mahler conducted the first performance of his huge Eighth Symphony in Munich, with about a thousand performers.
Wikipedia: Symphony No. 8 (Mahler)Wikipedia: Gustav Mahler
Photo: Moritz Nähr / Wikimedia Commons (Public domain)

1959
The western Bonanza premiered, the first regular TV series broadcast in colour.
Photo: TV studio / Wikimedia Commons (Public domain)

1966
Gemini 11 climbed to a record height of about 1,370 kilometres above Earth, the highest any crewed craft had gone outside Apollo.
Photo: NASA / 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.