1759: Although innocent of treason, this work was looked upon with suspicion and alarm in official circles. Consequently, the royal privilege was withdrawn. The work, however, was continued surreptitiously by the publisher, Le Breton, who had been censoring Dehydrate work without his knowledge. For a century and a half, scholars despaired of recovering Diderot's original text, for the manuscript had been destroyed as the matter was set in type, but about 200 years later a volume containing Le Bretonå°ˆ corrections of the proof turned up and was acquired by an American collector.
1759 Rome, Italy: The first seven volumes were condemned by the Index.
1804 Rome, Italy: The complete work was placed on the Index.
Source: Banned Books 387 B.C. to 1978 A.D., by Anne Lyon Haight, and Chandler B. Grannis, R.R. Bowker Co, 1978.