In January 532, partisans of the chariot racing factions in Constantinople, normally rivals, united against Justinian in a revolt that has become known as the Nika riots.
In 532, attempting to secure his eastern frontier, Justinian signed a peace treaty with Khosrau I of Persia, agreeing to pay a large annual tribute to the Sassanids.
Justinian survived a revolt in Constantinople (the Nika riots), which solidified his power but ended with the deaths of a reported 30,000 to 35,000 rioters on his orders.
