Historical details of the period of Baha'u'lláh's 1852 imprisonment in the infamous dungeon of Tehran and the birth of the Bahá’í Revelation, and firsthand accounts of this event including some rare testimonies by Bahá’u’lláh Himself.
Sijn-i-Akbar (The Great Prison):
The Event of Bahá'u'lláh's Incarceration in the Síyáh Chál Prison of Tehran