English

Noun

millenarianism ‎(countable and uncountable, plural millenarianisms)

1. A belief in a coming religious millennium, especially (Christianity) the belief in a coming thousand-year reign of peace heralded by the Second Coming of Christ; utopianism, belief in a coming era of peace and prosperity. [from 19th c.]
   • 1971, Keith Thomas, Religion and the Decline of Magic, Folio Society 2012, p. 139:

     It is hard to say for certain just why this brief but notable shift from passive to active millenarianism should have occurred during the Interregnum.