Memoricide

Memoricide is the destruction of the memory, extermination of the past of targeted people. It also refers to destruction of the traces (religious buildings, schools...) that might recall former presence of those considered undesirable. 
Memoricide is used in support of ethnic cleansing. Since the memoricide refers to intentional attempts to erase human memory about something, it is usually performed as destruction of its physical property. The term was coined by Croatian doctor Mirko Grmek in the text published in Le Figaro on 19 December 1991. 
Allegations for memoricide.
According to some accounts the memoricide was employed by Greece toward Macedonians of Slavic origin.
The dissident historian Ilan Pappe deployed the concept of cultural memoricide as systematic attempt of post-1948 Israel in relation to Palestine. 
Grmek used the term to describe activities of the rebel Serb forces in Croatia during the first year of the Croatian independence war.