1908 – Aden Abdullah Osman Daar was born at Beledweyne, Hiiraan Region.
1944 – He joined the Somali Youth Club.
1946 – Became a member of the party’s steering board and was appointed Secretary of the Belet Weyne section of the party.
1951 – Regional Council of Mudug designated him for the Territorial Council on which he served as the representative of the S.Y.L.
1953 – Appointed Vice-President of the Territorial Council.
1954-1956 – He became the President of the Somali Youth League.
1958-1960 – Re-elected President of the Somali Youth League.
1960-1967 – Elected as the 1st president of Somalia.
– On 1st of July, he proclaimed the Independence of the Somali Republic.
1967 – In the presidential elections he was beaten by Abdirashid Ali Shermarke.
– His term as president ended on 10th of June.