The abbreviation AH stands for After Hijra. This term is used in the Islamic calendar system, which begins its count from the year of the Hijra. The Hijra refers to the migration of the Prophet Muhammad and his followers from Mecca to Medina in 622 CE (Common Era). This pivotal event marks the beginning of the Islamic era and is the foundational year for the Islamic lunar calendar. Therefore, a year designated 'AH' indicates its position within this specific historical and religious timeline.
Anno Hugivae is not a recognized historical or calendrical term. After History is a vague and incorrect interpretation of the abbreviation. Common Era, abbreviated as CE, is a different dating system used globally, often alongside BCE (Before Common Era), and is distinct from the Islamic calendar's AH system, which is based on a lunar cycle.