Complex sentence: Al-Amawi was a prolific writer and historian, pg 537-B.G Martin (1971) and wrote extensively on the history of East Africa, though since the Zanzibar revolution, his books remain missing and might have been destroyed in the chaos that ensued.
Split into simpler sentences: Al-Amawi was a prolific writer and historian, pg 537-B.G Martin (1971) and wrote extensively on the history of East Africa. However, since the Zanzibar revolution, his books remain missing and might have been destroyed in the chaos that ensued.