A song on the radio helped signal the overthrow of a dictatorship. A painting became part of a refugee relief campaign. A television drama brought millions of viewers into the story of a family losing its home.
Across literature, painting, cinema and music, works of art have helped people recognise injustice, supported campaigns and given political movements a shared voice. Their effects have also included propaganda and the encouragement of hatred.
Looking closely at seven moments reveals how that influence worked. Sometimes it changed public opinion. Sometimes it helped an organisation reach supporters. On one extraordinary night, a record on the radio became the signal for military action.
Harriet Beecher Stowe’s Uncle Tom’s Cabin (1852) brought the brutality of slavery into the homes of readers through fiction. Its stories of violence, faith and families separated by sale gave an emotional form to a political struggle already being fought by enslaved people and abolitionists. Published as a book in 1852, it became a bestseller in the United States and Britain.
The Library of Congress documents its influence on public debate, including sharply conflicting contemporary reactions. The novel gave opponents of slavery a widely discussed cultural reference and challenged readers to consider the human consequences of a system many defended or tolerated.
Its reputation became so enormous that a story circulated claiming Abraham Lincoln credited Stowe with starting the Civil War. That story is apocryphal. The book’s historical importance is better understood as part of a much larger struggle: fiction helped carry an existing moral argument to a mass audience.
D. W. Griffith’s The Birth of a Nation (1915) demonstrates how artistic influence can deepen injustice. The film presented the Ku Klux Klan as heroic and built its account of Reconstruction around racist distortions. Its popularity helped the Klan’s revival, providing a powerful cultural advertisement for white supremacy.
The response was organised resistance. The NAACP launched a nationwide campaign against the film, challenging its false history and seeking to prevent screenings. Some cities banned it; elsewhere, offensive scenes were removed.
This is an uncomfortable example of art changing the world. The ability to make audiences feel fear, loyalty or admiration carries consequences. A compelling story can lend emotional credibility to a lie, particularly when its prejudices are already familiar to the people watching.
Pablo Picasso’s Guernica (1937) grew out of the bombing of the Basque town of Gernika during the Spanish Civil War. German and Italian forces attacked in support of Franco’s side. Picasso responded with a vast painting of terror and suffering, created for the Spanish Republic’s pavilion at the Paris International Exhibition.
Its political role extended into practical relief work. In 1939, the Spanish Refugee Relief Campaign organised a tour of the painting through four American cities to support fundraising for Spanish refugees. The Reina Sofía museum’s research notes that the money raised fell below expectations, while the tour helped spread recognition of the painting’s political significance.
That combination matters: an artwork could serve as a protest, attract attention to displaced people and contribute to an aid campaign. Its impact included both the resources it helped mobilise and the lasting image it gave to civilian suffering in war.
Billie Holiday’s recording of “Strange Fruit” (1939) confronted listeners with racial terror. Written by Abel Meeropol, the song used the image of fruit hanging from trees to describe lynching. Holiday’s performance brought that subject into a nightclub and onto a commercial record, demanding attention within spaces associated with entertainment.
The song also entered political campaigning directly. According to Julia Blackburn’s essay for the Library of Congress, copies of the recording were sent to members of the US Senate in its release year as a protest against lynching. Civil rights leader Walter White wrote to congratulate Holiday.
The effect was a powerful public testimony against violence that was being excused, concealed or normalised. A short performance could leave listeners carrying an image they had not expected to encounter that evening. Its contribution to protest came through the force of the performance and the ways campaigners used it.
Cathy Come Home (1966), written by Jeremy Sandford and directed by Ken Loach, followed a young family’s descent into homelessness. Its use of documentary techniques within a fictional drama made housing insecurity immediate and personal. Viewers watched a family lose its footing and face institutions unable to keep it together.
The housing charity Shelter says more than 12 million people watched the film and credits its impact with helping generate public empathy and support from the organisation’s beginnings. The broadcast coincided with Shelter’s launch; the film gave the emerging campaign an extraordinary moment of public attention.
Here, the connection between culture and action is particularly clear. An audience had a reason to care, and an organisation offered a way to respond. The drama made a social problem recognisable through people with names, relationships and something to lose.
José Afonso’s “Grândola, Vila Morena” became a revolutionary signal in Portugal in 1974. After midnight on 25 April, Rádio Renascença broadcast the song as the second of two musical signals used by officers preparing to overthrow the dictatorship. An earlier broadcast of “E Depois do Adeus” had told participating troops to get ready.
According to Portugal’s public broadcaster RTP, “Grândola” gave the order to leave the barracks. Music had a concrete operational role in the events that became the Carnation Revolution and opened Portugal’s path towards democracy.
The extraordinary detail is how much depended on shared understanding. To someone outside the plan, it was a record being played on the radio. To those waiting for it, the broadcast meant that the operation was going ahead. The same piece of music carried an instruction and, in its later public life, the memory of liberation.
Estonia’s Singing Revolution brought collective music into the struggle for independence. The country’s long tradition of song festivals had helped sustain national identity. In 1988, hundreds of thousands gathered at Tallinn’s Song Festival Grounds for patriotic songs and political demands during the period of Soviet occupation.
Shared singing made participation visible and audible on an enormous scale. People could express belonging together, using a cultural tradition that connected the gathering to earlier generations. Music helped make a movement something its participants could experience collectively.
Estonia restored its independence on 20 August 1991. That outcome involved political organising, institutions and the wider crisis of Soviet power. The singing gatherings formed part of that history, helping sustain the public solidarity on which the independence movement drew.
Across these examples, the connection between art and change runs through other people: readers discussing a novel, campaigners circulating a recording, organisers raising funds, audiences supporting a charity and crowds joining their voices. The work reaches beyond its original setting because someone carries it into public life.
For anyone making music or other art, that is a substantial possibility. A work can help people notice what they have accepted, imagine the lives of strangers or recognise that others share their convictions. Its influence may begin in a private encounter and become visible only when people act.
Which work of art changed the way you understood the world?