Nika riots
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The Nika riots, Nika revolt or Nika sedition took place against Byzantine emperor Justinian I in Constantinople over the course of a week in 532 C.E. Wikipedia
Location: Constantinople
Start date: January 532 AD
End date: January 18, 532 AD
Death(s): 30,000 rioters killed
Resulted in: Military action by imperial government leading to the escalation and militarization of the riots