The symbol is a fusion of e and t, Latin et, with the oldest known form scrawled in Pompeii. Tiro, Cicero's secretary, invented a rival shorthand in the first century BCE that Gaelic still uses. In the 1800s British schoolchildren recited the alphabet ending X, Y, Z, and per se and, meaning & by itself is the word and; the mumble compressed to ampersand, first recorded 1835, with corruptions like Ann Passy Ann along the way. By the late nineteenth century it was expelled from the alphabet. It responded by taking over the business world: Marks & Spencer, AT&T, R&D, R&B.
No character works more brands: it signals partnership, concision, and a whiff of heritage, two names and a contract in one stroke. Designers adore it because every font redraws it, the one letter where typefaces show personality. Its whole career is a lesson in survival by usefulness: demoted from letter to ligature, it became indispensable exactly by stopping being official.
The claim: the ampersand is the shape of alliance itself, two letters merged into one asset while remaining legally distinct, and its dominance in company names is no accident: it is the smallest possible joint venture, e and t holding hands without dissolving. Verdict: etymologically literal, the thing is a ligature, Latin ligare, to bind. The alphabet expelled it for being a merger; the market adopted it for the same reason. Every & on a storefront is the oldest corporate logo still in circulation.
If a letter can be expelled from the alphabet, what other letters are on probation?