Oppenheimer's papers and archives were transferred to the Bancroft Library at the University of California, Berkeley. Oppenheimer authored over 60 technical and nontechnical papers. The bulk of this collection covers his work in physics and education in the years leading up to his founding of the Exploratorium. Also included are papers related to his investigation by the House Un-American Activities Committee (HUAC). Historical archives of the Exploratorium (1957—present) are also kept at the Bancroft. The University of Minnesota holds archives covering Oppenheimer's physics work during 1946-1959.