The solar eclipse of July 5 (sometimes erroneously reported as June 7),[3] as well as the eclipse of November 30 a few months later, caused Charlemagne to write a letter in 811 to Waldo, abbot of the Abbey of Saint-Denis in Paris, asking the Irish monk Dungal, then resident at the abbey, to analyze the eclipses; he did so, relying on Roman astronomy authorities such as Pliny the Elder's Natural History and MacrobiussCommentary on the Dream of Scipi.[4] Charlemagne had learned of the July 810 eclipse from a visiting bishop from Constantinople.[5] Charlemagne may have been disturbed by the July 810 eclipse's coincidence with the death of his son Pepin of Italy, on July 8, 810.[6]
Some scholars posit that the Rök runestone inscriptions were influenced by the 810 solar eclipses (as well as other events, such as the solar storm in 775 and an unusually cold summer that year, in addition to the memory of the volcanic winter of 536), and interpret the runestone as predicting a climate crisis of extreme winter, perhaps the fimbulvetr, which the Norse believed to presage Ragnarök, the end of the world.[8]
July 19, 939
-
-
-
total
03m28s
Southern Eurasia
The eclipse began in the Atlantic, crossed the Iberian Peninsula from Cape San Vicente to Cape Rosas to enter Principality of Hungary, Sea of Azov, Greater Khorasan and North Indian, ending in Nusantara. The chronicle of the eclipse is not because of the eclipse itself, but because of the surprise it provokes in the two opposing sides in the Battle of Simancas
This eclipse allowed the Byzantines, led by Isaac II Angelos, to make a counteroffensive against rebels attacking Thrace.[14]
March 3, 1337
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"fourth to the seventh hour"
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Black Sea
This eclipse terrified the inhabitants of Trebizond, inciting them to rebel against their emperor Basil, throwing rocks at the citadel of the Emperor.[15]
May 5, 1361
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"fifth hour of the day"
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total
"an hour and a half"
Black Sea
This eclipse was so full that an eye-witness claimed he could see the stars in the sky. The Emperor Alexios III and his retinue were induced to make a pilgrimage to Soumela Monastery, where they performed "many supplications and prayers."[16]
Statistics
Longest total eclipses
Below is a list of all total eclipses longer than 7 minutes that occurred between the 5th and 15th centuries.
^Panaretos, ch. 22. Greek text and English translation in Scott Kennedy, Two Works on Trebizond, Dumbarton Oaks Medieval Library 52 (Cambridge: Harvard University, 2019), pp. 11ff ISBN978-0-674-98662-6
^Panaretos, ch. 45. Greek text and English translation in Scott Kennedy, Two Works on Trebizond, Dumbarton Oaks Medieval Library 52 (Cambridge: Harvard University, 2019), pp. 33ff ISBN978-0-674-98662-6