Complex sentence: James Hastings, "Encyclopedia of Religion and Ethics Part 24", (Kessinger Publishing: 2003), p.847 His family ruled the Sultanate until the year 1277 Was replaced by the Arab family of Abu Moaheb until 1513 when it crashed by the Portuguese invasion.
Split into simpler sentences: James Hastings, "Encyclopedia of Religion and Ethics Part 24", (Kessinger Publishing: 2003), p.847 His family ruled the Sultanate until the year 1277. It was replaced by the Arab family of Abu Moaheb until 1513, when it was overthrown by a Portuguese invasion.