Do you write "a historic" or "an historic?" There's only one right answer.
"Ahistoric" is a word that means "not related to history." Therefore "an" is used to avoid confusion.
-
-
Ce Tweet est indisponible.
-
Writing is a collection of symbols to represent sounds. You write out a sentence using the symbols the signify the sounds contained in that sentence. Ergo, you write "an" because that's what you would say.
Fin de la conversation
-
Le chargement semble prendre du temps.
Twitter est peut-être en surcapacité ou rencontre momentanément un incident. Réessayez ou rendez-vous sur la page Twitter Status pour plus d'informations.