The famous Mathematician and founder of Algebra was:

Explanation

Al-Khwarizmi is the correct answer. He was a Persian mathematician, astronomer, and geographer who lived during the 9th century. Al-Khwarizmi played a pivotal role in the development of algebra. His work "Kitab al-Mukhtasar fi Hisab al-Jabr wal-Muqabala" (The Compendious Book on Calculation by Completion and Balancing) is a foundational text that introduced systematic methods for solving linear and quadratic equations, laying the groundwork for algebra as a distinct branch of mathematics.