The Istanbul pogrom (sometimes referred to as Septemvriana) was a government- instigated series of riots against the Greek minority of Istanbul in September 1955. It can be characterized as a ‘‘crime against humanity,’’ comparable in scope to the November 1938 Kristallnacht in Germany, perpetrated by the Nazi authorities against Jewish civilians.
de Zayas, Alfred
"The Istanbul Pogrom of 6–7 September 1955 in the Light of International Law,"
Genocide Studies and Prevention: An International Journal:
Available at: https://scholarcommons.usf.edu/gsp/vol2/iss2/4