August 16. On this date in 1852, one day after a group of Bábís attempted to assassinate Naser al-Din Shah Qajar, Bahá'u'lláh was arrested and imprisoned. Years later, when he publicly revealed his mission, Bahá'u'lláh would claim that during this incarceration he was visited by the "Maid of Heaven" who told him his mission as the "Manifestation of God." Due to pressure from the Russian ambassador, Bahá'u'lláh was not executed but instead exiled to Baghdad along with the other Bábí leadership. Bahá'u'lláh traveled from Iran to Baghdad accompanied with a representative of the Russian legation and an entourage of Russian guards.

August 16.  On this date in 1852, one day after a group of Bábís attempted to assassinate Naser al-Din Shah Qajar, Bahá'u'lláh was arrested and imprisoned.  Years later, when he publicly revealed his mission, Bahá'u'lláh would claim that during this incarceration he was visited by the "Maid of Heaven" who told him his mission as the "Manifestation of God."  Due to pressure from the Russian ambassador, Bahá'u'lláh was not executed but instead exiled to Baghdad along with the other Bábí leadership.  Bahá'u'lláh traveled from Iran to Baghdad accompanied with a representative of the Russian legation and an entourage of Russian guards.

 

From Helen S. Goodall, a Disciple of `Abdu'l-Bahá, and Ella Goodall Cooper's "Daily Lessons Received at Akka: January 1908," "Exile of Bahá'u'lláh"...

When Bahá'u'lláh was imprisoned in Tihran, the Russian Ambassador went about twenty times to the Shah to plead in His behalf, saying, "This man has no fault. He is faultless. Why do you imprison Him?" The Shah answered that Bahá'u'lláh must be punished because He had ordered the attack on his life (see history). The Ambassador said, "That is not a reasonable supposition; for, if He had ordered such an attempt, He would have ordered a bullet put in the gun instead of merely powder and small shot." The Shah acknowledged this reasoning but was determined to hold Bahá'u'lláh responsible so as to have a pretext for keeping Him in prison.
Again and again the Russian Ambassador went to talk with the Shah about the matter, and at last the Shah confessed that he was afraid of the influence of Bahá'u'lláh, and that if he should set Him free, it would create a great tumult among the people.
The Ambassador answered, "If, then, you fear Him so much, why keep Him in Tihran? Would it not be better to exile Him to Baghdad?" This was accordingly done, and an escort furnished of Cossack and Russian horsemen to protect Him from the Persian horsemen. From Baghdad, Bahá'u'lláh was sent to Constantinople, then to Adrianople, then to Akka--by force He was sent to the place where He desired to be, thus fulfilling the prophecies of all the Holy Books. He came by His own Will. Had He simply appeared and declared Himself there, the opposers might have said, "Of course, He has read the prophecies and determined to appear in the Holy Land in order to mislead the people." But we see that He used the natural instruments who thought they were sending Him there by force. This is what we may call a real miracle.
After all, did the Shah accomplish his will, or did Bahá'u'lláh accomplish His Will?