To mark the 100th anniversary of the end of World War I, Dr. Karl Roider will teach a course on the Great War at the Ada Public Library beginning today (Wednesday). His first talk will be on the Origins of War at 3:30 p.m.

All are welcome, and the program is free of charge.

Dr. Roider is retired professor and dean at Louisiana State University. He grew up in Ada where his father served as ONU music department chair for many years. He returned to Ada several years ago following retirement.

The other Wednesday session titles are:

Sept. 12: Trench Warfare
Sept. 19: USA in the War
Sept. 26: End of the War