 Examples of such regions are the Ethiopian Highlands and Eritrea and the southern region of the Blue Nile State and the Nuba Mountains, all of which have difficult terrains and complex tribal systems.AlKhatim, at only 25 years of age, managed to overcome personal physical risk, the harsh geography and the tribal complexities of these lands to call its people to Islam and to set up mosques and Islamic centres of learning which created a link between these lands and the Islamic World.Among his achievements was the establishment of the first teaching centre for the education of women in Sudan.