Holocausts

noun

1. A sacrifice that is completely burned to ashes.
2. Extensive destruction of a group (usually of people or animals), whether by deliberate agency or by natural agency (especially fire).

   "1895 September 10, "ANOTHER ARMENIAN HOLOCAUST; Five Villages Burned, Five Thousand Persons Made Homeless, and Anti-Christians Organized.", in The New York Times"

3. In particular, a state-sponsored mass murder of an ethnic group, especially the Holocaust (which see).