The Franklin D. Roosevelt Presidential Library and Museum in Hyde Park, New York, made FDR's Master Speech File available online in digital format for the first time on Monday.
The file includes more than 46,000 pages of drafts, reading copies and transcripts and is one of the most requested collections in the archive at the nation's first presidential library.
The library's complete collection of audio recordings of FDR's voice also is available online for the first time.
Monday marks the 74th anniversary of Japan's attack on Pearl Harbor. The attack came while FDR was president and prompted the United States to enter World War II.