Complex sentence: In 1954 when Sudan prepared to get independence, they appointed a Mekk (chief) for each hill and above these Mekks ruled a Nazir who was the ruler of the Mekks.
Split into simpler sentences: In 1954 when Sudan prepared to get independence. They appointed a Mekk (chief) for each hill and above these Mekks ruled a Nazir who was the ruler of the Mekks.