830 – 840s

Events in the 830s 1

• 830 Al-Khwarizmi invents algebra Kitab al-mukhtasar fi hisab al-jabr — the word algebra is born Around 830 AD, Muhammad ibn Musa al-Khwarizmi, a scholar at the House of Wisdom in Baghdad, published his treatise on solving equations by balancing and completion. The Arabic title contained the word al-jabr, which became algebra in Latin. Al-Khwarizmi also introduced the Hindu-Arabic numeral system to the Islamic world and described algorithms systematically — the word algorithm derives from the Latin form of his name. His work was the foundation of all subsequent mathematics.