since its founding, Bluffton has been open to non-Mennonites. In fact, members of the Mennonite denomination now make up a minority of students. Historian Perry Bush, in his centennial history of the college, argues that Bluffton's distinctive religious orientation has been to avoid both secularization and generic American evangelicalism. While many other denominational colleges adopted the latter, Bluffton leaders "refused to separate Mennonite ethical principles from the doctrines they held in common with other evangelicals. They refused to treat peace and service as if they were add-ons, 'nonessentials,' extra-chrome options. Christ's theological and ethical teachings were all of one piece, Mennonites have insisted, and a proper Christian college would be built on the firm integration of the two." Evidence of this focus can be found in the high percentage of Bluffton graduates "devoting lives to service occupations: teaching, medicine, social work, church ministry, and the like." 2007 bus crash On March 2, 2007, a bus carrying the Bluffton baseball team fell off the Northside Drive overpass on Interstate 75 in Atlanta, Georgia, after the driver apparently mistook a southbound left-side exit ramp for a high-occupancy vehicle lane. The bus crashed into and flipped over a concrete barrier on the overpass and fell 30 feet back onto the interstate. Four members of the Bluffton baseball team were killed in the accident, along with the bus driver and his wife. A fifth player died a week later from injuries caused by the crash. On March 12, 2008, a memorial titled the "Circle of Remembrance" located near the baseball field was dedicated prior to a Service of Remembrance to mark the one year anniversary of the event. Academics Bluffton offers academic study in more than 85 majors, minors and interdisciplinary programs; adult bachelor's degree-completion program in business management, accounting and RN to BSN; and master's degrees in organizational management, business administration with available concentrations in health care management and accounting and financial management. An Online MBA is also offered in collaboration with Eastern Mennonite University and Goshen College. Graduate courses in education are offered leading to licensure and endorsements. Bluffton University holds a certificate of authorization from the Ohio Board of Regents to confer the degrees of bachelor of arts, bachelor of science, master of arts in education, master of arts in organizational management, and master of business administration. Bluffton University is accredited by The Higher Learning Commission, a member of the North