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The following is a basic timeline of the Bábí and Baháʼí religions emphasizing dates that are relatively well known. For a more comprehensive chronology of the timeline, see the references at the bottom.

1795

  • (1210 AH), Shaykhi sect is started by Shaykh Ahmad.

1817

  • November 12 / Muharram 2 1233 AH. Baháʼu'lláh is born. See also Twin Holy Birthdays.

1819

  • October 20 / Muharram 1 1235 AH. The Báb is born. See also Twin Holy Birthdays.

1826

  • Shaykh Ahmad dies and Siyyid Kázim is appointed leader of the Shaykhi sect.

1828

  • Mírzá Muhammad Ridá, the Father of the Báb, dies. The Báb is placed in the care of his maternal uncle, Hají Mirzá Siyyid 'Alí

1835

  • September 24 - October 22, Baháʼu'lláh marries Navváb.

1843

  • Siyyid Kázim dies. Before his death he instructs his students, including Mulla Husayn, to find the Promised One, the Mahdi.

1844 AD / 1 BE

  • The Báb's first religious experience, witnessed by his wife, is dated to about the evening of April 3.
  • (1260 AH), May 22, evening, the Báb declares his mission to Mulla Husayn in Shiraz, Iran.
  • May 22–23, overnight, ʻAbdu'l-Bahá is born to Navváb and Baháʼu'lláh.
  • By late September Baháʼu'lláh accepts the Bábí religion.

1845 AD / 2 BE

  • September, restrictions are enforced on the Báb's movement within Shiraz after he declares himself to be the Mahdi publicly.
  • Government reports initiate coverage in the West first mentions the arrest and imprisonment of Mullá 'Alíy-i-Bastámí of the Bábí religion. It was published in The Times of London November 1 and several times thereafter.

1846 / 3 BE

  • Bahíyyih Khánum is born to Navváb and Baháʼu'lláh.
  • September, the Báb leaves Shiraz for Isfahan.

1847 / 4 BE

  • July, The Báb is imprisoned at Maku and writes the Bayán.

1848 / 5 BE

  • Mírzá Mihdí is born to Navváb and Baháʼu'lláh.
  • Munirih Khánum, wife of ʻAbdu'l-Bahá is born in Isfahan to prominent Bábís of the city.
  • March 20, Mullá Husayn visits the Báb in Maku
  • April 10, the Báb is moved to the prison of Chihriq, due to his growing influence in Maku. He was largely kept there until a few days before his execution.
  • June - July, the Conference of Badasht was held.
  • July, during public interrogation at Tabriz the Báb makes a dramatic public declaration. He is returned to Chihriq.
  • July 21, Mullá Husayn hoists the Black Standard and marches with 202 other Bábís to Mashhad.
  • October 10, Mullá Husayn and a host of other Bábís are besieged at fort Tabarsi.
  • October 20, Quddús arrives at fort Tabarsí.

1849 AD / 6 BE

  • Baháʼu'lláh marries Fátimih in Tihrán.
  • February 2, Mullá Husayn dies in battle at fort at the Shrine of Shaykh Tabarsí.
  • May 10, Battle of Fort Tabarsi ends after a negotiated surrender in which the victors promise to let the Bábís go. Immediately afterward, the victors break their oath and kill many of the defenders.
  • May 16, Quddús is tortured and executed.

1850 AD / 7 BE

  • July 9, the Báb is publicly executed in Tabriz.
  • Brief newspaper coverage of the Bábí religion reaches several newspapers in Britain and the United States in the autumn.

1851 AD / 7-8 BE

Dr. Rev. Austin Wright sent materials of the Báb and a letter/paper about events related to the religion to the American Oriental Society - he wrote the letter February 1851 and it was published June. The letter/paper was published in June a Vermont newspaper as well. Some of it was also translated into German by his supervisor, Rev. Justin Perkins, and was thought for many years to have not been published in English though even in its German form Wright had been named as the first person to write a paper on the Bábí-Baháʼí period.

1852 AD / 9 BE

  • August 15, angry Bábís (acting on their own volition) make a failed attempt to kill Nasser al-Din Shah, who retaliates by imprisoning Baháʼu'lláh and executing several thousands of Bábís, including Táhirih and Siyyid Husayn-i-Yazdi.
  • September to December, while imprisoned for four months in the Síyáh-Chál in Tehran, Baháʼu'lláh receives the first intimations that he is the promised one foretold by the Báb.

1853 / 9 BE

  • January 12, Baháʼu'lláh is exiled from Tehran to Baghdad.
  • Mírzá Muhammad ʻAlí is born to Fátimih and Baháʼu'lláh in Baghdad

1854 / 11 BE

  • April 10, Baháʼu'lláh retreats to the Sulaymaniyah mountains within Kurdistan due to a rising tensions between Mírzá Yahyá and himself.
  • Henry Aaron Stern (1820-1885) published a book that mentions "Baba, the Persian socialist" for a couple pages.