1811 – Born on the 6th of August in Christiansted, Saint Croix, in the Danish West Indies.
1824 – Attended Fayetteville Academy in North Carolina, and at the age of fourteen he entered Yale Law School.
1832 – Moved to New Orleans, Louisiana, where he continued his study of law, was admitted into the bar and entered private practice as a commercial lawyer.
1833 – Benjamin made a strategic marriage to Natalie St. Martin, of a prominent New Orleans Creole family.
– He was elected to the lower house of the Louisiana State Legislature as a Whig.
1845 – Served as a member of the state Constitutional Convention.
1850 – He sold his plantation and its 150 slaves.
1853 – Senator from Louisiana.
1859 – He was again selected to serve as Senator for the term as a Democrat.
– During the 34th through 36th Congresses he was chairman of the Committee on Private Land Claims.
1861 – Confederate secretary of war.
– Davis appointed Benjamin to be the first Attorney General of the Confederacy on 25th of February.
– Benjamin has been referred to as "the Brains of the Confederacy."
1862-1865 – Last Confederate secretary of state.
1866 – He was called to the bar in England, the beginning of a successful and lucrative second career as a barrister.
1868 – Published his Treatise on the Law of Sale of Personal Property.
1872 – He became Queen’s Counsel.
1884 – Died in Paris on the 6th of May and was interred at Père Lachaise cemetery.