On this day

1 March in history.

5 moments from 1869 to 2006: discovery, creativity and courage, each with a source to read more.

5 moments

1872

The world's first national park. The United States set aside Yellowstone, with its geysers, hot springs and wild valleys, as a park for everyone to enjoy. It was the first national park anywhere.

Photo: Rhododendrites / Wikimedia Commons (CC BY-SA 4.0)

1869
Mendeleev's table of the elements
Russian chemist Dmitri Mendeleev finished his first periodic table, arranging the elements in a pattern and leaving gaps for ones nobody had found yet.
Wikipedia: Periodic table Wikipedia: Dmitri Mendeleev
Photo: Original: Unknown author Unknown author Upload: Germansociety2014 / Wikimedia Commons (Public domain)
1896
A clue hidden in a drawer
Henri Becquerel found that uranium salts left in a dark drawer had fogged his photographic plates on their own. He had discovered radioactivity.
Wikipedia: Henri Becquerel Wikipedia: Radioactive decay
Photo: Paul Nadar / Adam Cuerden / Wikimedia Commons (Public domain)
1973
The Dark Side of the Moon
Pink Floyd released an album that stayed on the US charts for well over a decade and became one of the best-selling records ever made.
Wikipedia: The Dark Side of the Moon Wikipedia: Pink Floyd
Photo: Abbey Road Studios / Wikimedia Commons (Public domain)
2006
Wikipedia reaches a million articles
The English Wikipedia published its one millionth article, about a small railway station in Glasgow, written by volunteers.
Wikipedia: English Wikipedia
Photo: Original logo design: David Friedland from a concept by Paul Stansifer Logo upgrade (2.… / Wikimedia Commons (CC BY-SA 3.0)

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