Quo Fuit places 6 dated presences for Ole Rømer across 5 places, from 1644 to 1681.
Each one keeps the sentence it was taken from and a link to its source.
Ole Christensen Rømer (25 September 1644 – 19 September 1710) was a Danish astronomer who, in 1676, first demonstrated that light travels at a finite speed.Wikipedia, full article · CC BY-SA
Every dot is a place Ole Rømer is documented in, on a dated record. The interactive globe carries the full detail.
Where Ole Rømer was documented, and when
25 September 1644exact date
Aarhusattested“Rømer was born on 25 September 1644 in Aarhus to merchant and skipper Christen Pedersen (died 1663), and Anna Olufsdatter Storm ( – 1690), daughter of a well-to-do alderman.”source: Wikipedia: Ole Rømer
1662year
Copenhagenattested“There are few records of Ole Rømer before 1662, when he graduated from the old Aarhus Katedralskole (the Cathedral school of Aarhus), moved to Copenhagen and matriculated at the University of Copenhagen.”source: Wikipedia: Ole Rømer
1671year
Copenhagenattested“After studies in Copenhagen, Rømer joined Jean Picard in 1671 to observe about 140 eclipses of Jupiter's moon Io on the island of Hven at the former location of Tycho Brahe's observatory of Uraniborg, near Copenhagen, over a period of se…”source: Wikipedia: Ole Rømer
1671year
Parisattested“After studies in Copenhagen, Rømer joined Jean Picard in 1671 to observe about 140 eclipses of Jupiter's moon Io on the island of Hven at the former location of Tycho Brahe's observatory of Uraniborg, near Copenhagen, over a period of se…”source: Wikipedia: Ole Rømer
1681year
University of Copenhagenattested“In 1681, Rømer returned to Denmark and was appointed professor of astronomy at the University of Copenhagen, and the same year he married Anne Marie Bartholin, the daughter of Rasmus Bartholin.”source: Wikipedia: Ole Rømer
1681year
Denmarkattested“In 1681, Rømer returned to Denmark and was appointed professor of astronomy at the University of Copenhagen, and the same year he married Anne Marie Bartholin, the daughter of Rasmus Bartholin.”source: Wikipedia: Ole Rømer
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In each of these, a source puts Ole Rømer and the place in the same dated sentence without stating
that Ole Rømer was there. They are kept apart from the timeline above for exactly that reason:
a mention is not a presence, and Quo Fuit does not quietly promote one into the other.
1672year
Parismentioned“In 1672 Rømer went to Paris and continued observing the satellites of Jupiter as Cassini's assistant.”source: Wikipedia: Ole Rømer
7 December 1676exact date
French Academymentioned“Rømer presented his results to the French Academy of Sciences, and it was summarised soon after by an anonymous reporter in a short paper, ', published 7 December 1676 in the Journal des sçavans.”source: Wikipedia: Ole Rømer
1 May 1683exact date
Denmarkmentioned“In Rømer's position as royal mathematician, he introduced the first national system for weights and measures in Denmark on 1 May 1683.”source: Wikipedia: Ole Rømer
1700year
Denmarkmentioned“In 1700, Rømer persuaded the king to introduce the Gregorian calendar in Denmark and Norway – something Tycho Brahe had argued for in vain a hundred years earlier.”source: Wikipedia: Ole Rømer
1704 to 1716period
Copenhagenmentioned“The observatory opened in 1704, and operated until about 1716, when the remaining instruments were moved to Rundetårn in Copenhagen.”source: Wikipedia: Ole Rømer
1708year
United Statesmentioned“After visiting with Rømer in 1708, Daniel Gabriel Fahrenheit began making his thermometers using a modified version of Rømer's scale that eventually evolved into the Fahrenheit scale still popular in the United States and a few other cou…”source: Wikipedia: Ole Rømer
Two people documented in the same place in the same year is a correlation, not a meeting.
Quo Fuit will never say they met without a source that says so.
How to read this page
Every line above is a dated fact taken from a source, with the sentence it came from and a link
back to it. Nothing is inferred, and a gap in the record is not evidence that someone was elsewhere.
A tag says how the fact is carried by its source: documented a structured,
explicitly dated record, attested a sentence that states the person was there,
mentioned a sentence that ties the person to the place without stating presence.
Sentences quoted from Wikipedia are available under CC BY-SA 4.0. Public domain books come from
Project Gutenberg. Quo Fuit claims no rights over these sources.
See Ole Rømer on a 3D globe, filter the record by date, and cross this life with another to find
where the two overlap.
