1877 – Born in Washington, D.C., on the 1st of July. He was the first African-American general in the U.S. Army.
1898 – He entered the military service on 13th of July as a temporary first lieutenant of the 8th United States Volunteer Infantry.
1899 – He was mustered out on 6th of March.
– On 18th of June, he enlisted as a private in Troop I, U.S. 9th Cavalry Regiment of the Regular Army and served as corporal and squadron sergeant major.
1901 – On the 2nd of February, he was commissioned a second lieutenant of Cavalry in the Regular Army.
1901 – In August he was assigned to duty with the 2nd Squadron, 10th Cavalry.
1905-1909 – He was made Professor of Military Science and Tactics at Wilberforce University, Ohio.
1905 – Promoted to first lieutenant on 30th of March.
1912 – Served as Military Attaché to Monrovia, Liberia.
1915 – Attained the rank of captain on 24th of December.
1917 – He was the temporary major on 5th of August.
1918 – Became the lieutenant colonel (temporary) on 1st of May.
1919 – He reverted to his permanent rank of captain on 14th of October.
1920 – Promoted to lieutenant colonel on 1st of July.
1930 – Became colonel on 18th of February.
1937 – He was transferred from Tuskegee Institute to Wilberforce University.
1940 – Served as brigadier general on 25th of October.
1941 – He was retired on 31st of July and recalled to active duty with the rank of brigadier general the following day.
1942 – Assigned to the European Theater of Operations in September.
1944 – Became Special Assistant to the Commanding General, Communications Zone, and European Theater of Operations, stationed in Paris, France.
1945 – He was granted a period of detached service for the purposes of recuperation and rehabilitation.
1946 – In January he became Special Assistant to the Inspector General, Washington, D.C.
1948 – He retired on 14th of July as the senior Brigadier General.
1970 – Benjamin Oliver Davis, Sr. died on 26th of November.