Abū Jaʿfar Muḥammad ibn Mūsā al-Khwārizmī (c. 780 – c. 850 CE) was a Persian polymath who served as a scholar at the House of Wisdom in Baghdad during the Islamic Golden Age. He was instrumental in the adoption of the Hindu–Arabic numeral system in the West.
He’s considered the “father of algebra”, a term derived from the title of his book, Kitāb al-mukhtaṣar fī ḥisāb al-jabr wa-’l-muqābala. Crucially, he provided the first step-by-step logic for solving equations, a concept later that was formalised as the algorithm, a word that’s derived from his own name.