[4] He was born in Baalbek, Ottoman Syria (present-day Lebanon) but immigrated in his childhood to Safavid Iran with the rest of his family.

[4] He was one of the earliest astronomers in the Islamic world to suggest the possibility of the Earth's movement prior to the spread of the Copernican theory.

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.

[4] 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.

[4] 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.

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.

In fact, Sheikh Bahaei used flammable gases that were naturally produced in a nearby cesspool for heating the bath's water.

Although there are many theories about the working of this heating system, it was concluded recently that he knew about biogas and the network was to guide toilet wells which were common to Iranian's houses and mosques.It is said that he designed the Manar Jonban (Shaking Minarets), which still exist in Isfahan; but this edifice was built in the fourteenth century during the Ilkhanid period on the tomb of Amu Abdollah Soqla, a pious Sheikh and Faqeer, who died in that same century.

The High Council of Cultural Revolution in Iran designated April 23 as the National Architect Day, marking the birth anniversary of Sheikh Bahaei.

[7] At the same time, Sheikh Baha' al-Din calls for strict adherence to the Sharia as a prerequisite for embarking on the Tariqah[7] and did not hold a high view of antinomian mysticism.

His outstanding works in the Persian language are Jame-e Abbasi and two masnavis (rhymed couplets) by the names of Shīr u Shakar ("Milk and Sugar") and Nān u Halwā ("Bread and Halva").

[citation needed] His other important work is the Kashkūl, which includes stories, news, scientific topics, Persian and Arabic proverbs.