Bachelor of Philosophy
The B.Phil.'s earliest form is as a University of Oxford graduate degree, first awarded in 1682. Originally, Oxford named its pre-doctoral graduate degrees the Bachelor of Philosophy (B.Phil.) (a two-year degree, partly taught and partly by research) and the Bachelor of Letters (B.Litt.) (a two-year research degree). After complaints, especially from overseas students, that this naming convention often meant that graduate degrees were not being recognised as such, the University renamed them Master of Philosophy (M.Phil.) and Master of Letters (M.Litt.). However, the Philosophy Faculty (then a Sub-Faculty) argued that its B.Phil. degree had become so well known and respected in the philosophical world that it would be confusing to change the name. In philosophy, therefore, the degree continues to be called the B.Phil. Those who pass the degree are given the choice of taking a B.Phil. or an M.Phil.; few if any choose the latter. (Note that Oxford also offers a number of other graduate degrees labeled as baccalaureate degrees: the law faculty's BCL; and the music faculty's B.Mus)
Master of Divinity
The MDiv is a significantly more extensive program than most taught (as opposed to research-based) master's degrees. In the United States the degree usually consists on average of 90 semester hours, as opposed to the usual 36 or 48. Ordination in most mainline Protestant denominations and the Roman Catholic Church thus requires seven or eight years of education past high school: the first four in undergraduate studies leading to a bachelor's degree (which may or may not be in a related field) and then three or four years of seminary or divinity school education leading to the MDiv.