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Annus mirabilis (pl. anni mirabiles) is a Latin phrase that means "wonderful year", "miraculous year" or "amazing year". This term was originally used to refer to the year 1666, and today is used to refer to several years during which events of major importance are remembered. Prior to this, however, Thomas Dekker used the phrase mirabilis annus in his 1603 pamphlet The Wonderful Year, "Wherein is shewed the picture of London lying sick of the plague."