774–775 carbon-14 spike
774–775 carbon-14 spike
Observed increase concentration of carbon-14 in tree rings dated 774 or 775.
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King of Northumbria from 765 to 774.
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Readers come from
Share of the 2,772 readers arriving from another article
Miyake event
Sharp increase in cosmogenic isotopes.
18%
Carrington Event
Geomagnetic storm in 1859.
18%
Gamma-ray burst
Flash of gamma rays from a distant galaxy.
17%
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Method for determining the age of objects.
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Major volcanic eruption in Korea.
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774
Calendar year.
2.1%
Carbon-14
Radiosotope of carbon.
1.7%
Coronal mass ejection
Ejecta from the Sun's corona.
0.87%
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Archaeological site in Russia.
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