The Legend of The Oregon Trail

In 1971, three student teachers in Minnesota decided to develop a text-only computer game to teach kids about the challenges of traveling the Oregon Trail. At the end of the semester, the source code was printed out onto a giant roll of paper and the program was deleted, only to come back to life several years later under the Minnesota Educational Computing Consortium, or MECC. (I remember their 5.25 inch floppies well!)