The "Other September 11" was the installation of the #gorilladictatorship in #Chile. https://soaw.org/september-11th-and-its-legacy-in-chile
The democratically elected government of #SalvadorAllende was overthrown by a #coupdetat. It implemented a #militaryjunta which according to many #revolutionary commentators was not technically #fascism because it lacked the broad popular base, a party formation and other characteristics of #fascismo.