The word “propaganda” derives its modern use from the name of a 17th-century Roman Catholic institution, the Sacra Congregatio de Propaganda Fide, or Sacred Congregation for the Propagation of the Faith. Established during the Thirty Years War (1618-1648, a sectarian conflict that devastated Europe following the Protestant Reformation), it housed a college that trained priests to advance Church dogma on a divided continent.

The role in contemporary quarrels of a term linked to early modern religious strife is disconcerting because it suggests that even secular politics are, in alarming measure, faith-based. Two exhibitions in London, “Propaganda: Power and Persuasion” (at the British Library from May 17 to Sept. 17) and “The Art of Influence: Asian Propaganda” (at the British Museum from May 30 to Sept. 1) probe this anxiety and, by presenting national styles of persuasion in juxtaposition, reduce antique arguments to examples in the study of a phenomenon.

The British Library exhibition is moody and lavish, with video screens murmuring lessons in the history of persuasion, sloping walls set at labyrinthine angles, and ominous, faceless mannequins that suggest man as tabula rasa. The art direction cultivates a slightly paranoid atmosphere that is at odds with the cool-headed understanding of propaganda advanced by the show’s consultant David Welch, who directs the Centre for the Study of Propaganda at the University of Kent, and whose illustrated book, “Propaganda: Power and Persuasion,” accompanies the exhibition.

Welch writes that “the word continues to imply something sinister,” but concludes that propaganda is “ethically neutral — it can be good or bad.” His spectrum includes “white propaganda,” which declares its sources and discloses facts, but seeks “to convince an audience of the superiority and justice of a particular regime or ideology,” and “black propaganda,” which promotes falsehoods and disguises its origins. Welch offers a refreshing corrective to the fervid conceit of those who claim that propaganda is what their adversary does. “Propaganda,” he writes, “is merely a process of persuasion that forms a normal part of the political dynamic.”

The view of propaganda as rhetoric suits societies with diverse sources of information and porous censorship (“censorship,” Welch observes, “is a negative form of propaganda”—meaning its inverse). But arresting images from revolutionary Russia and China, which were aimed at politicizing illiterate masses, remind viewers that there were times and places in which leaders must have felt like prophets. The innocence of times past is, in any case, relative: Allied propaganda from the two world wars was remarkably crude and married to censorship, and it is to the faith-based deceptions of World War I that Welch attributes propaganda’s bad reputation.

Much of the exhibition’s framing is American, with Uncle Sam appearing on the promotional material, and a 1949 U.S. instructional film, “propaganda techniques” screening at the entrance. Disappointingly, the Middle East — ground zero for so many incompatible narratives — gets light treatment. By contrast, Asia is well covered.

Memorable pieces include a Japanese print from the Sino-Japanese War, which shows Japanese troops attacking Songhwan in Korea while, in a tantalizing modern detail, journalists take notes from behind cover. A colorful Russian cartoon, “The Song of the Russian Navy,” misrepresents Russia as the dominant naval force in the Russo-Japanese War of 1904-05. A World War II piece issued by the Indian Independence League, which allied itself to Japan, depicts Winston Churchill holding Indians in chains. A British drawing for Indian consumption shows a tiger trampling German and Japanese flags. British anti-Japanese leaflets warn that Japan — portrayed as an octopus — threatens world trade.

The British Museum addresses the region’s history in further detail by presenting — in many cases for the first time — selections from its Department of Asia’s propaganda collection. The exhibition draws most of its images from China and Japan, but includes examples from India, Vietnam, Burma, North Korea, Indonesia, and the Philippines. Mary Ginsberg, the show’s guest curator and author of its handsome exhibition catalogue, describes the period covered—from 1900 to 1976 (the year Mao Zedong died and Vietnam formally unified)—as “an era of almost continual war and revolution.”

The exhibition confronts arriving viewers with two memorable images: a 1943 Japanese manga caricature of Winston Churchill carrying a bloody lash and drooling as he gnaws a bone, and a 1967 Vietnamese poster showing an armed female communist and a flaming American plane behind the slogan, “Nowhere to Run to Escape.” This juxtaposition suggests both commentary on Britain’s handing-off of global power to America, and an ironic jibe at Obama’s “pivot” from the unhappy Middle East to prosperous Asia. British and American power are major presences throughout the show, which showcases Asian portrayals of anti-colonial struggles as well as the Asia-Pacific, Korean, and Vietnam wars.

Japan’s rivalry with Russia heralds the era of revolution Ginsberg describes, and it is represented by a Japanese print mocking the Russian navy as “limping fish” following the 1905 Battle of Tsushima. Japan’s defeat of a Great Power unsettled the imperial status quo throughout Asia, but it did not prevent experimentation with Western aesthetics, even through World War II: A 1942 propaganda magazine, FRONT, adopts what Ginsberg identifies as the “photomontage” style of the Russian revolutionary photographer, Alexander Rodchenko, and a 1937 children’s magazine, “Heroic Episodes from the Japanese-Chinese War,” suggests Japanese attraction to American pulp magazines.

Many pieces in the show, by contrast, represent radical adaptations of traditional forms. Wartime Japan produced such curiosities as a “Manchukuo kimono” covered in designs celebrating Japanese expansion in Manchuria, and a set of porcelain sake cups commemorating military campaigns. Ginsberg observes that “The Rats’ Wedding,” a 1943 sequence illustrating a children’s folktale, was specially adapted to emphasize the wartime theme of “sartorial restraint” and the groom’s military uniform.

The most compelling aspect of tradition in propaganda, however, may be the tendency of observers to superimpose it. A Vietnamese poster promising conversion of tanks to agricultural equipment, for example, reminds Ginsberg of the biblical line, “They shall beat their swords into ploughshares.” Elsewhere, a Chinese scholar explains the resonance of pictures of the boat on which the first congress of the Chinese Communist Party met by remarking, “If a Westerner sees a man and a woman riding a donkey under a star, he immediately thinks […] about the birth of Jesus. When a Chinese sees this boat, it’s about the birth of the Communist Party.”

His remark doesn’t bring us all the way back to early modern Rome, but it gets us as far as Judea, a province of the Roman Empire whose big ideas would in time reach Rome, and beyond.

For more information on these exhibitions, visit the The British Library at www.bl.uk and The British Museum at www.britishmuseum.org

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