Sultanate of Arababni independent Muslim states in the region, was a primary target of the jihad of Ahmad ibn Ibrahim al-Ghazi (Ahmed Gurey), Imam of the Adal Sultanate. During the reign of Emperor Amda Seyon I, Arbabni was conquered and annexed by Abyssinia and would become the Fetegar province. Fetegar was occupied by Arsi Oromo during the Oromo migrations and would become part of Arsi Province, and what is now Arsi Zone. Sultanate of Arababni The Sultanate of Arababni (also known as Arbabni or Arabini) was a small Gurage Islamic sultanate located in what is now the Arsi Zone of Ethiopia. Founded around
Abyssinia, Henry production of this episode, both Stevenson and Wayne Rogers, who played the character of Trapper John McIntyre, left the series to pursue other interests. While Stevenson's departure was announced prior to and written into "Abyssinia, Henry", Rogers unexpectedly left the series during the break between Seasons Three and Four, and so his character's departure takes place off-screen in the following episode, "Welcome to Korea", the first of the show's fourth season. These combined departures and their subsequent replacements also signaled the beginning of a major shift in focus of the "M*A*S*H" series as a whole with story and script focus