Sheikh Baha' al-Din (also spelled Baha'uddin) Muhammad ibn Husayn al-'Amili was born near
Baalbek, in
Ottoman Syria (present-day Lebanon) in 1547. His family had moved there from a small village near
Jezzine. After the execution of al-Shahid al-Tani in 1558, his father's mentor, he and his family moved to the neighboring
Safavid Empire; first to
Isfahan, and from there to
Qazvin, the then Iranian royal capital. At the time, the Safavid realm was ruled by king
Tahmasp I (r. 1524-1576). Tahmasp I appointed Sheikh Bahāʾī's father to serve as
Shaykh al-Islām in several important Safavid cities in order to propagate
Twelver Shi'ism amongst the population. Sheikh Bahāʾī completed his studies in
Isfahan. Having intended to travel to
Mecca in 1570, he visited many Islamic countries including
Iraq,
Syria and
Egypt and after spending four years there, he returned to Iran. Sheikh Baha' al-Din died in 1621 in Isfahan. His body was buried in
Mashhad according to his will.
Exact dates of birth and death The exact dates of his birth and death are different on his grave stone and on the ceramic of the walls of the room where he is buried in.
Date of birth: •
On the ceramics of the wall: 27 February 1547 •
On the grave stone: March 1546
Date of death: •
On the ceramics of the wall: 30 August 1621 •
On the grave stone: August 1622 The dates on the wall contain day, month and year, while the dates on the grave stone only contain month and year. The ceramics of the wall are made in 1945. It seems that at that time a research is performed about the exact dates, and, therefore, the information about the day is added to the dates.
Pen name According to
Baháʼí Faith scholar
‘Abdu’l-Hamíd Ishráq-Khávari, Sheikh Baha' al-Din adopted the pen name (
takhallus) 'Baha' after being inspired by words of
Shi'a Imam Muhammad al-Baqir (the fifth Imam) and Imam
Ja'far al-Sadiq (the sixth Imam), who had stated that the
Greatest Name of God was included in either
Du'ay-i-Sahar or
Du'ay-i-Umm-i-Davud. In the first verse of the Du'ay-i-Sahar, a dawn prayer for the
Ramadan, the name "Bahá" appears four times: "Allahumma inni as 'aluka min Bahá' ika bi Abháh va kulla Bahá' ika Bahí". ==Astronomy and mathematics==