Ayatullah Muhammad Baqir al-Sadr (Arabic: آية الله العظمى السيد محمد باقر الصدر) (March 1, 1935 – April 9, 1980) was born in al-Kazimiya, Iraq to the prominent Sadr family, which originated from Jabal Amel in Lebanon. In 1945 he moved to the holy city of Najaf where al-Sadr would spend the rest of his life. He was a child prodigy who, at 10, was delivering lectures on Islamic history. At eleven, he was a student of logic. He wrote a book refuting materialistic philosophy when he was 24. Al-Sadr completed his religious studies at religious seminaries under Ayatollah al-Khoei and Ayatollah Muhsin al-Hakim, and began teaching at the age of 25.