This collection documents Northwestern's annual Trig Cremation ceremonies, which began in the 1870s as students conducted a spring-time ritual centered around the burning of their hated trigonometry textbooks. Over the years the ceremony turned into a student-produced musical. The collection contains clippings, and written histories of the Trig Cremation (1880-1936), as well as programs, handbills, and songbooks from ceremonies (1877-1912).