Deep inside Leang Tedongnge cave on the Indonesian island of Sulawesi is a painting of a warty pig in red ochre. It is at least 45,500 years old, and when researchers dated it in January 2021, the starting point for human image-making was pushed back tens of thousands of years. Long before anyone had a word for art, before written language, before cities, someone sat in a cave and did what we still do today: put an image on a wall. A modern poster is the latest link in an unbroken chain stretching back forty-five millennia. This article is about why that chain never broke.
We like to think of paintings and posters as decoration, something you add once the practicalities are taken care of. But archaeology and neuroscience point in another direction. Putting an image on a wall seems to be one of humanity’s oldest and most fundamental needs – as old as fire, older than agriculture. To understand why a poster feels right on the wall, we need to go back to where it all began.
Quick facts: The world’s oldest known figurative painting is a Sulawesi warty pig in the Leang Tedongnge cave, dated to at least 45,500 years ago (published in Science Advances in January 2021). In 2024, a narrative scene in a nearby cave was dated to more than 51,000 years ago. For comparison, Chauvet Cave in France was discovered on December 18, 1994, and dates to around 36,000 years ago.
What Sulawesi and Chauvet reveal about the need for images
Until very recently, the story was simple: art was born in Europe. The caves of France and Spain were regarded as humanity’s first studios. The Sulawesi discovery rewrote that history. The warty pig from Leang Tedongnge, painted in red ochre and partly in nearly pristine condition, showed that people on the other side of the world had already mastered representation more than 45,000 years ago. Art did not arise in just one place – the need to depict things seems to have been built into our species, wherever it settled.
Chauvet Cave, which a team led by Jean-Marie Chauvet climbed into shortly before Christmas 1994, reinforces the same point. Here, horses, lions, and rhinoceroses are depicted with such confidence that experts initially doubted their age – surely they couldn’t be that old and that skillfully rendered at the same time? Radiocarbon dating said otherwise: around 36,000 years old. A rockfall sealed the cave about 21,000 years ago, preserving the paintings like a time capsule. The conclusion is uncomfortable for anyone who believes art began simply and grew more sophisticated over time. It began sophisticated.
That says something about what a picture on the wall really is. It isn’t decoration added afterward by a people with time to spare. It was there from the beginning, among hunter-gatherers who lived close to starvation. Spending time and precious ochre on an image must have served a purpose as real as food.
From Lascaux to Pompeii: the wall becomes a space for meaning
On September 12, 1940, four teenagers in Dordogne stumbled upon the entrance to Lascaux when one of their dogs investigated a hole left by an uprooted tree. Inside were around 600 paintings and 1,500 engravings—horses, deer, aurochs, and bison in a profusion that earned the cave the nickname “the Sistine Chapel of the Stone Age.” The paintings are around 19,000 years old. Lascaux became so beloved that it became its own enemy: in 1963, the cave was closed to visitors after exhaled air, condensation, and mold began to damage the images. Today, we see the replica Lascaux IV, opened in 2016.
Here, something important happens in the history of wall art. Cave paintings were communal and hard to access. When people moved into houses, the images moved with them. In Pompeii, buried by Vesuvius in 79, entire rooms were painted with vivid frescoes of gardens, gods, and architecture in false perspective—the wall became a way to make a small room feel larger and a private home more luxurious. For the first time, art was on a wall behind which a single family lived. The leap from Pompeii’s frescoes to a framed poster in a Swedish living room is shorter than the two thousand years might suggest: in both cases, the image transforms a place into a home.
"Putting a picture on the wall isn’t the last thing we do in a home—it is, archaeologically speaking, the first thing we ever did."
What research says about why we still do it
If the need is forty-five thousand years old, it should show up in modern brain research too—and it does. Researchers studying why we decorate point to an evolutionary root: shaping our surroundings gives us a sense of control and security, and that feeling reduces stress. Creating order and meaning in a room is a way of saying someone lives here, this is my place. The impulse to adorn the wall is interpreted as a direct continuation of cave dwellers’ need to mark out and inhabit their surroundings.
Content matters. In a 2024 dataset of around 20,000 labeled photographs, nature imagery consistently received higher happiness ratings than other image types—a pattern now used to select images for well-being apps. This aligns with broader research showing that images of landscapes, plants, and animals reduce stress levels and draw attention in a calming way. The brain also needs visual stimulation to stay active; a completely bare room isn’t neutral but understimulating. The wall isn’t naturally empty—it’s waiting for an image.
This is the dull but liberating truth behind all the talk about interior design: you don’t decorate to follow a trend, you decorate because you’re human. A poster does exactly what a cave painting did—it turns a surface into a story about who lives there.
Tip: Let one of your walls feature something inspired by nature—a landscape, a botanical illustration, or an animal. Research on happiness and stress strongly supports this, and it’s the easiest way to create a room that actually helps you breathe more calmly when you get home.
The cave’s red ochre and your wall today
There is a pleasing symmetry in the fact that the most common colors in the oldest paintings—red and yellow ochre from the earth—are exactly the earthy tones that appear in today’s interiors. When we choose a poster in terracotta, ochre, or warm sand, we reach back to the same palette available to people in Sulawesi and Lascaux. It’s no coincidence that these tones feel timeless; they have been with us longer than almost anything else we do. Our brains have simply had forty-five thousand years to learn that ochre and earth-baked red go hand in hand with security and presence, and that knowledge runs deeper than any seasonal trend. When an interior is described as warm and earthy today, it is in fact ancient.
In practical terms, the long arc of history means you can stop worrying about whether art belongs on the wall. The only question is which piece. An abstract image works like the movement and rhythm of cave paintings without depicting anything specific. A portrait or narrative image serves the same role as the scenes of Pompeii. A photograph of a landscape offers the connection with nature that research links to calm. If you want a safe choice, start where people have always started: with nature, color, and an image that means something to you. Our guide to art and well-being takes a closer look at how your choice of image affects how you feel in a room.
If you want to understand the next chapter in this story - when images left the cave and became mass-produced - the poster's breakthrough in the 19th century tells the story of how art became something everyone could own for the first time. We've gathered that story in our article about the history of the poster. And if you wonder why some subjects seem more beautiful than others before you've even had time to think, the answer lies partly in how the brain processes images, something we explore in the article about processing fluency and beauty.
How to choose a poster with forty-five thousand years of history behind it
History offers a few concrete clues. First: feel free to go big. The cave paintings and Pompeian frescoes were large enough to fill your field of vision, and a poster in 50x70 or 70x100 format does the same in a modern room - it becomes something you step into rather than look at. In our collection of nature prints, you'll find landscapes that work well in a larger format.
Second: let the subject carry meaning, not just color. The person in Sulawesi painted an animal they knew and depended on. Choose something that means something to you - a place, a plant, an animal, a color tied to memories. Botanical and nature-inspired subjects are a good starting point because they combine personal meaning with the stress-reducing effect described in research. Among our botanical posters and in our photographic art, you'll find subjects that do both. And if you want to go straight to the masters who carried the tradition forward, from cave to museum, you'll find them collected among our famous artists.
Frequently asked questions about the history of wall art
So the next time you hang a poster, you’re doing something deeply human and very ancient. Fifty thousand years of images on walls lie behind the gesture. If you’d like to start your own chain, explore our full range of all our posters – from earthy nature motifs to masterpieces by the great artists. Sources for the historical information: Science Advances on the Sulawesi discovery and Britannica on Lascaux.