The date of the Manifestation is fixed by the following
passage in the Persian Bayán (Vahíd 2, Báb 7): “The beginning thereof was when
two hours and eleven minutes [had passed] from the evening preceding the fifth
of Jamádiyu’l-Ula, 1260 [A.H.], which is the year 1270 of the mission [of
Muhammad].” (From manuscript copy of Bayán written by the hand of Siyyid
Husayn, amanuensis and companion of the Báb.)
(Footnotes to chapter 3, provided
by Shoghi Effendi)