Complex sentence: Aden Abdulle Osman Daar (1908--June 8,2007), popularly known as Aadan Cadde, was a Somali politician and the country's first President from July 1,1960 to June 10,1967.
Split into simpler sentences: Aden Abdulle Osman Daar (1908--June 8,2007), popularly known as Aadan Cadde, was a Somali politician. He was the country's first President, serving from July 1,1960 to June 10,1967.