774–775 carbon-14 spike (Q4643553)

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observed increase of 1.2% in the concentration of carbon-14 isotope in tree rings dated to 774 or 775
  • Miyake event
  • Charlemagne event
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Language Label Description Also known as
English
774–775 carbon-14 spike
observed increase of 1.2% in the concentration of carbon-14 isotope in tree rings dated to 774 or 775
  • Miyake event
  • Charlemagne event

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unknown value
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774
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775
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