A Brief History of the Letter 'X,' From Algebra to X-Mas to Elon Musk, History

A math historian explores how "x" came to stand in for an unknown quantity

The Mysterious Allure of a Mogul's Favorite Letter - WSJ

What does the letter 'X' mean? Branding experts weigh in

Here's the History of Elon Musk's X Brands

Elon Musk - Wikipedia

Musk's fascination with the letter 'X' - The Atlantic

Catchword Branding Name review of Twitter rebrand as X

Articles tagged as Ancient Civilizations

A Brief History of the Letter 'X,' From Algebra to X-Mas to Elon Musk, History

Elon Musk visits Auschwitz after uproar over antisemitic messages on X, World