Complex sentence: After the battle he migrated to Rufaa, a small town in the region of the Blue Nile, where he founded the first school for girls in Sudan in 1907 and named it "al Ahfad".
Split into simpler sentences: After the battle he migrated to Rufaa, a small town in the region of the Blue Nile. There he founded the first school for girls in Sudan in 1907 and named it "al Ahfad".