Source: New world A-Comingʼ: Inside Black America (Ottley, Roi) 1943 A.D. pg. 138 – 140
“As to be expected, the history of the Black Jews goes back a long way. The legend – according to Jewish authorities – is that about twenty-six hundred years ago a band of Jews, fleeing from Palestine, which was then under oppressive rule of the Babylonians, sought refuge in Egypt and along the cataracts of the Nile.”
“when Christianity was adopted by Ethiopia in 333 A.D., the lot of the Black Jews changed radically. Thousands of them were ruthlessly slaughtered and many compelled to embrace the new religion. Others were driven from their lands and scattered in search of new abodes in more hospitable – and indeed more inaccessible – sections of Ethiopia. Century after century they perservered as Jews. Eventually the number of Falashas, estimated originally at several hundred thousand, dwindled to a mere remnant. Many Jewish centers were completely dissolved, imperiling the continued existence of the Falasha community.”
and then