Important Historical Events of the year 856, Year 856 in History

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List of 856 Major News Events in History, Most Important Historical Events in 856

What happened in the year 856?

Date	Event
March 15, 856	Michael III, emperor of the Byzantine Empire, overthrows the regency of his mother, empress Theodora (wife of Theophilos) with support of the Byzantine nobility.
December 22, 856	Damghan earthquake: An earthquake near the Persian city of Damghan kills an estimated 200,000 people, the sixth deadliest earthquake in recorded history.