Dmitry Starostin writes on ‘Astronomical Cycles and Late Antique Chronology’ in arXiv:2403.03682 [physics.hist-ph], 6 March 2024, 24 pp.

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Heightened eschatological sensitivity is in evidence among the historians writing in the 5th century caused by the irregularities of the lunisolar calendar and its particular realization, the Easter calendar. Crucial years include 410, 467 and 476. Sidonius on p. 13.