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Dendrochronology

method of dating based on the analysis of patterns of tree rings

6 dated entries naming Dendrochronology, drawn from 6 separate years between 1627 BCE and 1737 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

Also written as Growth ring in the source articles; Wikipedia redirects those to the same subject, so their entries are on this page.

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17th century BC

  • 1627 BCE1627 BC—Beginning of a period of cooling of the world climate lasting several years, recorded in tree-rings all over the world. Various volcanic eruptions have been suggested for the cause of this climatic event; the Minoan eruption of Thera, the Avellino eruption of Mount Vesuvius, or the eruption of Mount Aniakchak.source

8th century

  • 774A 1.2% growth of 14C concentration recorded in tree rings, along with corresponding spikes of 36Cl and 10Be recorded in ice cores, suggests that a very strong solar storm may have hit Earth in either 774 or 775.source
  • 775A 1.2% growth of carbon-14 concentration recorded in tree rings suggests that a very strong solar storm may have hit Earth, in either 774 or 775. Known as the 774–775 carbon-14 spike, corresponds to the first Miyake event.source

10th century

  • 993An increase in 14C concentration, recorded in tree rings, as well as 36Cl and 10Be isotopes, recorded in ice cores, suggests that a strong solar storm may have hit the Earth in either 993 or 994.source
  • 994An increase in carbon-14 concentration, recorded in tree rings, suggests that a strong solar storm may have hit the Earth in either 993 or 994.source

18th century

  • 1737February 27 – French scientists Henri-Louis Duhamel du Monceau and Georges-Louis Leclerc de Buffon publish the first study correlating past weather conditions with an examination of tree rings.source

Named in the same entries