A 9th-century Persian scholar, Muhammad ibn Musa al-Khwarizmi, revolutionized mathematics by introducing systematic methods for solving equations, laying the groundwork for algebra. His name gave rise ...

War in Europe is a staple topic in the study of history, but there’s one major conflict most history books won’t teach you: the battle of the equal sign, =. These two parallel lines were, in fact, the ...

David E. Dunning explores how mathematical notation is a social, world-building technology. It’s natural to think of math as being fundamentally abstract. Whether it’s invented or discovered, its ...