National Nicole Day circulates on social platforms and on holiday-listing sites each 23 December, a real footprint that records the observance without accounting for it. No founder, proclamation or establishment record has been identified.
The bishop who argued the Earth might be turning
Nicole Oresme was born in Normandy around 1320, led the College of Navarre, and translated Aristotle into French for Charles V. He was the first to prove that the harmonic series diverges. He drew changing quantities on rectangular coordinates, laying groundwork that later led to Descartes and analytic geometry.
One passage takes apart every proof that the Earth stands still. Then, having shown that a daily rotation could not be ruled out, he wrote that he believed it stood still anyway. He died bishop of Lisieux in 1382.


