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Gahn

Gahn is a Swedish family from Falun, one member of which was ennobled in 1809 with the name Gahn af Colquhoun. The family has claimed an unverified origin in a Scottish family Colquhoun, a claim which was confirmed 1781 in a letter by the Lord Lyon King of Arms, but on dubious grounds, as later research has shown. A claim that the Swedish noble family Canonhielm is a branch of this family has also been shown to lack genealogical substance. Notable members of the family include: *Johan Gottlieb Gahn (1745–1818), chemist and mineralogist who discovered manganese in 1774, and after whom the mineral gahnite was named. *Henrik Gahn (1747–1816), physician and student of Linnaeus, who pioneered the use of vaccine against smallpox in Sweden in 1803. *Carl Pontus Gahn, ennobled with the name Gahn af Colquhoun (1759–1825), military officer who participated in the war in Finland in 1788–1789, the campaign in Norway in 1808 and the invasion of Norway in 1814. He became major-general in 1814 and president of the Court-Martial of Appeal in 1824. *Henrik Gahn (1820–1874), chemist and industrialist, who invented the first antiseptics to be used in Sweden, which he named aseptin and amykos. In 1867 he founded the company Henrik Gahns AB, sold in 1964 to Barnängen (the latter was bought and is now a brand owned by Henkel Norden AB).…

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Article summary

Gahn is a Swedish family from Falun, one member of which was ennobled in 1809 with the name Gahn af Colquhoun. The family has claimed an unverified origin in a Scottish family Colquhoun, a claim which was confirmed 1781 in a letter by the Lord Lyon King of Arms, but on dubious grounds, as later research has shown. A claim that the Swedish noble family Canonhielm is a branch of this family has also been shown to lack genealogical substance. Notable members of the family include: *Johan Gottlieb Gahn (1745–1818), chemist and mineralogist who discovered manganese in 1774, and after whom the mineral gahnite was named. *Henrik Gahn (1747–1816), physician and student of Linnaeus, who pioneered the use of vaccine against smallpox in Sweden in 1803. *Carl Pontus Gahn, ennobled with the name Gahn af Colquhoun (1759–1825), military officer who participated in the war in Finland in 1788–1789, the campaign in Norway in 1808 and the invasion of Norway in 1814. He became major-general in 1814 and president of the Court-Martial of Appeal in 1824. *Henrik Gahn (1820–1874), chemist and industrialist, who invented the first antiseptics to be used in Sweden, which he named aseptin and amykos. In 1867 he founded the company Henrik Gahns AB, sold in 1964 to Barnängen (the latter was bought and is now a brand owned by Henkel Norden AB).…

Key claims

  1. date of foundation: 1964 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the date of foundation is "1964". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1222679193

Key claims and bibliography are generated from the same tracked claims and sources as the article page.