In spite of the immense loss of information over the centuries, there are about 45,000 Egyptian papyri, including fragments, in six institutional libraries and museums in the United States. (Athena Review, 2, no. 2). The main U.S. holders of papyri are Duke University, University of California at Berkeley, University of Michigan, Columbia, Yale, and Princeton. It has been estimated that there are about 500,000 unpublished papyri preserved elsewhere. Other major institutional collections of papyri are the University of Heidelberg, University of Oxford, University of Lecce, and the University of Copenhagen.