Mathematics
Persian mathematician · ~780–850, Baghdad
The founder of algebra - restoring and balancing equations into a general art.
Start learning Al-Khwarizmi →How Al-Khwarizmi’s Al-Kitab al-Mukhtasar fi Hisab al-Jabr wa’l-Muqabala turned scattered tricks for solving equations into a single systematic science - and gave algebra its very name.
The geometric heart of Al-Khwarizmi’s method - how literally building a square out of an equation turns a recipe into a proof, and reveals why the quadratic formula works.
How Al-Khwarizmi’s second great book spread the Indian decimal place-value system - with its revolutionary zero - across the world, and how his Latinised name became the word algorithm .
Al-Khwarizmi’s Baghdad - the great translation movement of the Abbasid golden age that gathered, preserved, and transformed the mathematics of Greece, India, and Persia, and from which the modern world inherited so much.
Al-Khwarizmi’s lasting significance - how the idea running through all his work, that whole classes of problems yield to fixed general procedures, mechanised reasoning itself and laid a foundation for everything from sc…
epoché — a humanities education that remembers you.