This is an analytical history of the role Tigrinya-speakers have played and are still playing in the history of Ethiopia and Eritrea, from Tigray's very ancient incipience to the origins of today's tragically fratricidal war. Drawing from his huge corpus of publications on the Horn of Africa, Haggai Erlich sheds new light on major turning-points, as well as patterns of continuity. His history revolves around one key question: what was 'the mysterious magnetism' that held (and still holds) Ethiopia together? Erlich argues that there is an 'Amhara thesis' competing with a 'Tigrayan thesis'...