Complex sentence: Due to persecution as a result of his illegitimacy, Shaka spent his childhood in his mother's settlements where he was initiated into an "ibutho lempi" (fighting unit).
Split into simpler sentences: Due to persecution as a result of his illegitimacy, Shaka spent his childhood in his mother's settlements. He is recorded as having been initiated there and inducted into an "ibutho lempi" (fighting unit).