In early 1921—after the Sovietization of Armenia—a Dashnak Armenian revolt that spawned in Yerevan spread to the Zangezur uezd, becoming known as the Republic of Mountainous Armenia.
In early 1921, after Armenia's incorporation into the Soviet Union, a Dashnak Armenian uprising that began in Yerevan spread to the Zangezur region, leading to the establishment of the Mountainous Armenia Republic.