July 22

The circumstances surrounding the revelation of this Book, designated by its Author the Kitab-i-Aqdas (The Most Holy Book), are recounted by Shoghi Effendi in God Passes By, his history of the first hundred years of the Baha'i era. Having dwelt upon the world- shaking significance of Baha'u'llah's proclamation of His Faith, which had opened in 1867 with the revelation of the Suriy-i-Muluk (Tablet to the Kings), he continues,

"Unique and stupendous as was this Proclamation, it proved to be but a prelude to a still mightier revelation of the creative power of its Author, and to what may well rank as the most signal act of His ministry -- the promulgation of the Kitab-i-Aqdas. Alluded to in the Kitab-i-Iqan; the principal repository of that Law which the Prophet Isaiah had anticipated, and which the writer of the Apocalypse had described as the 'new heaven' and the 'new earth,' as 'the Tabernacle of God,' as the 'Holy City,' as the 'Bride,' the 'New Jerusalem coming down from God,' this 'Most Holy Book,' whose provisions must remain inviolate for no less than a thousand years, and whose system will embrace the entire planet, may well be regarded as the brightest emanation of the mind of Baha'u'llah, as the Mother Book of His Dispensation, and the Charter of His New World Order.” 
(The Universal House of Justice, from a message dated April 1973)