A professor of Illinois College, the oldest college in the state, presents its history in celebration of its sesquicentennial anniversary. Beginning with its inception in 1829 to 1979, the author deals with its defeats and triumphs impartially, placing them in a philosophic framework. The foreword is written by Donald C. Mundinger, President of Illinois College and the introduction by William N. Clark, Chairman of the Board of Trustees. The history is divided according to time periods: 1829-1925 and 1925-1979. Several areas are examined: the foundations laid for the colleges, the numerous presidents of the college and their effects upon its growth, the medical school, pholosophies that affected the college's development, the literary societies, social realities present during various growth or decline periods for the college, and projections for future growth and direction. Appendices provide resource materials; name of members of faculty, 1925-1979; the trustees of Illinois Colleges, 1925-1979; and the persons who participated in the Illinois College Oral History. Various illustrations include photographs of the college and college buildings. (LC)