Samuel Eliot Morison was born in Boston, Massachusetts, on 9 July 1887. He attended Harvard University, from which he was graduated with a Bachelor of Arts Degree in 1908. He studied at the Ecole Libre des Sciences Politiques, Paris, France, in 1908-1909, and returned to Harvard for postgraduate work, receiving the degree of Doctor of Philosophy in 1912. Thereafter he became Instructor, first at the University of California in Berkeley, and in 1915 at Harvard. Except for three years (1922-1925) when he was Harmsworth Professor of American History at Oxford, England, and his periods of active duty during both World Wars, he remained continuously at Harvard University as lecturer and professor until his retirement in 1955.