The University of Minnesota Libraries has digitized the records of the principals of the Green Revolution, the worldwide collaborative effort to expand food crop production that traces its roots to the University of Minnesota in the first half of the 20th century. The project's centerpiece is the Norman E. Borlaug Papers, 1930-2006, which are frequently used by students, faculty, and independent scholars. The digitized collections are available in the UMedia Archive. They include: Norman E. Borlaug Papers, 1930-2006 Cereal Rust Laboratory Records, 1823, 1946-2007 John Gibler Papers, 1890-2006 Helen Hart Papers, 1917-1953 Elvin C. Stakman papers, 1918-1973 Department of Plant Pathology and Physiology Records, 1918-2007