• U.S. Declassified Documents Online
    Coverage: International
    Access Options: Off campusGakuNinOn campus
    Provider: Cengage Learning
    Category: Laws, Cases & Parliamentary Publications,Digital Collections

It contains declassified documents of the U.S. federal government and is fully text searchable.
It contains classified documents from approximately 60 U.S. government agencies, including the State Department, Department of Defense, CIA, FBI, National Security Council, White House, etc.
It not only allows users to filter documents by confidentiality level (Top Secret, Secret, Confidential, etc.), document type, issuing agency, censorship, document creation date, and declassification date but also enables full text search using OCR processing, making document discovery much easier.
In addition, a visualization function that graphs the time-series frequency of terms and related words of search terms, a PDF file download function, and an OCR text download function are implemented, paving the way for detailed analysis not only on a document-by-document basis but also on a word-by-word level.
As of December, 2021, there are approximately 147,500 documents on board, with 5,000 documents released as supplements each year.

Subject: 
History
Politics & Law