Archival descriptions are the fundamental means to describe, understand, retrieve and access archival material. Smithsonian Archives hold 156,830 cubic feet of archival material. Metadata is key for the preservation of context within archival science. The film includes archival footage and interviews. Accelerated aging is also used in library and archival preservation science. England after 1066 developed archives and archival research methods. Resources for students focus primarily on tips for research and writing using archival materials. The film juxtaposes the childhood memories of interviewees with archival footage. It contains new interviews as well as archival footage. Post-1991 research by historians accessing archival materials brought this range down considerably. It also features a special bonus disc filled with new and archival material. There are innumerable statues, commemorations, books and archival collections. These books were the result of original archival research. Sheets supports tagging for archival and organizational purposes. It is taught there as a tool for reading Qing-dynasty archival documents.