stylistic:tone, information:extraction
19th to early 20th century scholarship

Before the rise of professional historians in the 19th century, the Spanish Inquisition had been portrayed primarily by Protestant scholars who saw it as the archetypal symbol of Catholic intolerance and ecclesiastical power. The Spanish Inquisition for them was largely associated with the persecution of Protestants. William H. Prescott described the Inquisition as an "eye that never slumbered". Despite the existence of extensive documentation regarding the trials and procedures, and to the Inquisition's deep bureaucratization, none of these sources was studied outside of Spain, and Spanish scholars arguing against the predominant view were automatically dismissed. The 19th-century professional historians, including the Spanish scholar Amador de los Ríos, were the first to successfully challenge this perception in the international sphere and get foreign scholars to take note of their discoveries. Said scholars would obtain international recognition and start a period of revision on the Black Legend of the Spanish Inquisition.

At the start of the 20th century Henry Charles Lea published the groundbreaking History of the Inquisition in Spain. This influential work describes the Spanish Inquisition as "an engine of immense power, constantly applied for the furtherance of obscurantism, the repression of thought, the exclusion of foreign ideas and the obstruction of progress." Lea documented the Inquisition's methods and modes of operation in no uncertain terms, calling it "theocratic absolutism" at its worst. In the context of the polarization between Protestants and Catholics during the second half of the 19th century, some of Lea's contemporaries, as well as most modern scholars thought Lea's work had an anti-Catholic bias.

Starting in the 1920s, Jewish scholars picked up where Lea's work left off. They published Yitzhak Baer 's History of the Jews in Christian Spain, Cecil Roth 's History of the Marranos and, after World War II, the work of Haim Beinart, who for the first time published trial transcripts of cases involving conversos.

Contemporary historians who subscribe to the idea that the image of the Inquisition in historiography has been systematically deformed by the Black Legend include Edward Peters, Philip Wayne Powell, William S. Maltby, Richard Kagan, Margaret R. Greer, Helen Rawlings, Ronnie Hsia, Lu Ann Homza, Stanley G. Payne, Andrea Donofrio, Irene Silverblatt, Christopher Schmidt-Nowara, Charles Gibson, and Joseph Pérez. Contemporary historians who partially accept an impact of the Black Legend but deny other aspects of the hypothesis include Henry Kamen, David Nirenberg and Karen Armstrong.

Toby Green, while accepting that there was a certain demonization of the Spanish Inquisition in comparison with other contemporary persecutions, argues that the habitual use of torture should not be denied, and that correcting the "black legend" should not mean replacing it with a "white legend." Richard L. Kagan says that Henry Kamen failed to "enter the belly of the beast and assess what it really meant to the people who lived with it." Kamen does not, according to Kagan, "lead the reader through an actual trial. Had he done so, a reader might conclude that the institution he portrays as relatively benign in hindsight was also capable of inspiring fear and desperate attempts to escape, and thus more deserving of its earlier reputation." For Kagan, in order to reconstruct the world of those who were trapped in the Inquisition's net, studies that thoroughly examine the meticulous archives of the Inquisition are necessary.