 Most of the documents dating from these early years have been lost due to the French Revolution and the resultant pillage of Napoleon, which it is believed caused as many as two thousand documents to be lost before the archive was returned to Rome.Those remaining, however, have considerable value covering such questions as what role the Church played in the seventeenth century witch-hunts.After the archive of the Inquisition was returned to Rome in 1815, it expanded a great deal.