Quo Fuit places 4 dated presences for Karl Ziegler across 4 places, from 1898 to 1973.
Each one keeps the sentence it was taken from and a link to its source.
Karl Waldemar Ziegler (26 November 1898 – 12 August 1973) was a German chemist who won the Nobel Prize in Chemistry in 1963, with Giulio Natta, for work on polymers.Wikipedia, full article · CC BY-SA
Every dot is a place Karl Ziegler is documented in, on a dated record. The interactive globe carries the full detail.
Where Karl Ziegler was documented, and when
26 November 1898exact date
Helsaattested“Karl Ziegler was born on 26 November 1898 in Helsa near Kassel, Germany and was the second son of Karl Ziegler, a Lutheran minister, and Luise Rall Ziegler.”source: Wikipedia: Karl Ziegler
26 November 1898exact date
Kasselattested“Karl Ziegler was born on 26 November 1898 in Helsa near Kassel, Germany and was the second son of Karl Ziegler, a Lutheran minister, and Luise Rall Ziegler.”source: Wikipedia: Karl Ziegler
1949year
Germanyattested“Karl Ziegler was credited with much of the postwar resurrection of chemical research in Germany and helped found the German Chemical Society (Gesellschaft Deutscher Chemiker) in 1949.”source: Wikipedia: Karl Ziegler
12 August 1973exact date
Mülheimattested“Karl Ziegler died in Mülheim, Germany on 12 August 1973; his wife died in 1980.”source: Wikipedia: Karl Ziegler
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In each of these, a source puts Karl Ziegler and the place in the same dated sentence without stating
that Karl Ziegler 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.
1920year
University of Marburgmentioned“He progressed through schooling quickly receiving a doctorate from the University of Marburg in 1920.”source: Wikipedia: Karl Ziegler
1926year
University of Heidelbergmentioned“In 1926 he became a professor at the University of Heidelberg where he spent the next ten years researching new advances in organic chemistry.”source: Wikipedia: Karl Ziegler
1936year
Martin Luther University of Halle-Wittenbergmentioned“In 1936 he became Professor and Director of the Chemical Institute (Chemisches Institut) at the University of Halle-Saale and was also a visiting lecturer at the University of Chicago.”source: Wikipedia: Karl Ziegler
1936year
University of Chicagomentioned“In 1936 he became Professor and Director of the Chemical Institute (Chemisches Institut) at the University of Halle-Saale and was also a visiting lecturer at the University of Chicago.”source: Wikipedia: Karl Ziegler
1943 to 1969period
Mülheimmentioned“From 1943 until 1969, Ziegler was the Director of the Max Planck Institute for Coal Research (Max-Planck-Institut fur Kohlenforschung) formerly known as the Kaiser-Wilhelm Institute for Coal Research (Kaiser-Wilhelm-Institut fur Kohlenfo…”source: Wikipedia: Karl Ziegler
1952year
Italymentioned“In 1952, Ziegler disclosed his catalyst to the Montecatini Company in Italy, for which Giulio Natta was acting as a consultant.”source: Wikipedia: Karl Ziegler
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 Karl Ziegler on a 3D globe, filter the record by date, and cross this life with another to find
where the two overlap.
