Chiliasm

Millennialism (from millennium, Latin for "a thousand years"), or chiliasm (from the Greek), is a belief advanced by some Christian denominations that a Golden Age or Paradise will occur on Earth in which "Christ will reign" for 1000 years prior to the final judgment and future eternal state (the "World to Come" of the New Heavens and New Earth). This belief derives primarily from Revelation 20:1–6. Millennialism is a specific form of millenarianism.

Similarities to millennialism appear in Zoroastrianism, which identified successive thousand-year periods, each of which will end in a cataclysm of heresy and destruction, until the final destruction of evil and of the spirit of evil by a triumphant king of peace at the end of the final millennial age (supposed by some to occur in the year 2000). "Then Saoshyant makes the creatures again pure, and the resurrection and future existence occur" (Zand-i Vohuman Yasht 3:62).

Scholars have also linked various other social and political movements, both religious and secular, to millennialist metaphors.

Bahá'u'lláh mentioned in the Kitáb-i-Íqán that God will renew the "City of God" about every thousand years, and specifically mentioned that a new Manifestation of God would not appear within 1000 years (1893-2893) of Bahá'u'lláh's message, but that the authority of Bahá'u'lláh's message could last up to 500,000 years.

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