How Impressionism Changed Art History

On April 15, 1874, about thirty artists opened an exhibition in Paris in the studio of the photographer Nadar, entirely outside the official Salon. Among the paintings was Claude Monet's Impression, Sunrise. Ten days later, the critic Louis Leroy used its title as an insult, and the name "Impressionists" stuck. What followed was not just a new style. It was a change in what painters thought they were for: recording a specific moment of seeing, not staging a story from history or myth.

This article traces what Impressionism rebelled against, the tools and science that made it possible, the people and exhibitions involved, and what it left behind.

The system Impressionism rebelled against

To see why 1874 mattered, start with the rules that governed European painting in the mid-1800s. Official art was organized around the academies, and the most important public stage was the Salon, an exhibition chosen by a jury. A place in the Salon meant press attention, sales, and commissions. Rejection meant very little of any of them.

Academies also ranked subjects. The French Academy's classic formulation of the hierarchy of genres, associated with André Félibien in the 1660s, put history painting (historical, religious, mythological, or allegorical scenes) at the top, followed by portraits, then scenes of everyday life, then landscape, animals, and finally still life. Wikipedia's article on the hierarchy of genres quotes Félibien arguing that a painter of perfect landscapes ranks above one who paints only fruit, flowers, or seashells. By the late 19th century, painters and critics were beginning to rebel against these rules, and the same article notes that private buyers already preferred subjects from lower down the ladder.

The Impressionists took the lower rungs seriously. They focused, in the words of that article, on depicting "the present moment and daily life as observed by the eye, and unattached from historical significance." Landscape, a low-status genre, became their main subject.

Even the official system had cracks

The Salon was not unchallenged before 1874. In 1863, after the jury rejected many works, Napoleon III ordered a separate show of the refused paintings, the Salon des Refusés, so the public could judge for itself. Édouard Manet's Le déjeuner sur l'herbe was among the rejected works, and the show drew more visitors than the regular Salon. Later petitions for another such show, in 1867 and 1872, were denied, according to Wikipedia's overview of Impressionism. The lesson the younger painters drew was practical: if the jury would not hang their work, they could organize their own exhibition.

What made the new style possible

Impressionism is often told as a story of rebellious temperament. Three practical developments mattered just as much.

The paint tube

Before the 1840s, painters stored oil paint in animal bladders or glass syringes, according to Wikipedia's article on the paint tube. The American portrait painter John Goffe Rand invented the collapsible paint tube in 1841. Paint in a sealed metal tube kept for months and fit in a pocket, so a painter could carry a full range of colors into a field or onto a riverbank.

The quote usually attached to this development is worth getting right. It was Pierre-Auguste Renoir, not Monet, who said, "Without tubes of paint, there would have been no impressionism." Tubes made outdoor painting easier and encouraged spontaneous color choices while working in front of the subject. Premixed paints, Wikipedia's Impressionism article adds, let artists work more freely both outdoors and in.

Color science

The Impressionists worked at a time when scientists were studying how color and vision work, and their habits lined up with some of the findings. Two threads are worth knowing.

The first is simultaneous contrast, named by the French chemist Michel Eugène Chevreul. In 1824 he became director of the dye works at the Gobelins tapestry manufactory in Paris, where customers were complaining about the quality of the colors. He found that some dyes were flawed, but the black dye that people disliked was actually excellent. Black fabrics still looked weak and reddish beside deep blues and purples. The cause was how neighboring colors alter each other's appearance, which he named simultaneous contrast and published in 1839 as De la loi du contraste simultané des couleurs. Wikipedia's article on Chevreul says his theories "provided the scientific basis for Impressionist and Neo-Impressionist painting." Georges Seurat and Paul Signac later pushed the principle further with Pointillism, placing small strokes of complementary colors side by side.

The second thread is how the eye registers color at all. In 1802, Thomas Young proposed that the eye contains three types of receptors with overlapping responses to wavelengths of visible light. In 1850, Hermann von Helmholtz developed the idea further, classifying cone cells as short-, middle-, and long-wavelength preferring. Direct measurements confirming the theory in human retinas, made on single cone cells, were published in 1983 by Herbert Dartnall, James Bowmaker, and John Mollon, as summarized on Wikipedia's Young-Helmholtz theory page. For more on that scientist, see our profile of Hermann von Helmholtz and our explainer on how the human eye works.

A useful analogy: the three receptor types work like a printer with only three inks. Every color you see is a mixture of three signals from the retina. A painter who puts two pure colors next to each other and lets the viewer's visual system blend them is, in effect, handing the mixing job to the eye's own three-channel system.

Photography and Japanese prints

Two other influences changed what pictures looked like. The first exhibition was held in the studio of a photographer, which is a small reminder of how close the two media were. Degas, for example, developed a passion for photography in the late 1880s and used photographs of dancers and nudes as references for his drawings and paintings. Our article on how the camera obscura shaped realistic art covers the older optical background.

Japanese woodblock prints (ukiyo-e) offered a different design language. The French critic Philippe Burty described the craze for Japanese art as "japonisme" in 1872. Wikipedia's article on Japonisme notes that Monet owned a large collection of ukiyo-e prints, and that Degas began collecting them in the 1860s. The features borrowed were a flattening of planes, abstract approaches to color, and an emphasis on diagonals, asymmetry, and negative space, which made compositions look less like staged scenes and more like glimpses.

What the Impressionists did differently on the canvas

Wikipedia's list of Impressionist characteristics includes short, thick strokes of paint; colors placed side by side; grays made by mixing complementary colors, with black avoided; wet-on-wet painting; opaque paint surfaces; light-colored grounds; an emphasis on natural light; and blue-tinted shadows when painting outdoors. It helps to compare these with the academic approach they replaced.

Feature	Academic painting (the Salon standard)	Impressionist painting
Typical subject	History, myth, religion, portraits	Landscapes, city life, leisure, everyday scenes
Surface	Smooth, finished, brushwork hidden	Visible strokes, often thick
Color handling	Colors blended and modeled toward dark shadows	Pure colors side by side; shadows tinted with blue and other hues
Black	Common for shadow	Largely avoided
Where painted	Mainly in the studio	Often outdoors, in front of the subject
Time scale	Long, polished execution	Quick capture of a passing effect
Source of authority	The Academy and the Salon jury	The artists' own exhibitions and dealers

The shadow point is one of the easiest to test with your own eyes. On a clear day, the shadow of a tree on snow is not neutral gray. It picks up the blue of the sky, and nearby warm light makes the contrast stronger. The Impressionist habit of painting shadows as color rather than darkness came from looking closely at that fact. Our explainers on why the sky is blue and how pigments create color in paintings go deeper into the physics and chemistry.

One more material detail: the wet-on-wet technique depends on oil paint staying workable for a long time, and why oil paint dries slowly explains the chemistry behind that. The chemistry of pigments also decides how paintings age; see why colors fade for the conservation side.

April 1874: the exhibition that named a movement

The first group exhibition ran from April 15 to May 15, 1874, in Nadar's studio. About thirty artists took part. Berthe Morisot, who showed ten works, was the only woman, according to Wikipedia's article on her. Because the artists organized the show themselves, nobody on a Salon jury decided what the public could see.

On April 25, 1874, Louis Leroy published a satirical review in Le Charivari, written as a dialogue between visitors. He mocked Monet's Impression, Sunrise with the line, "Wallpaper in its embryonic state is more finished than that seascape." In the same dialogue, an old-fashioned painter says, "Impression, I was certain of it." The title itself had a casual origin: when Monet was asked for a catalogue title, he reportedly said, "Put Impression."

Impression, Sunrise: the painting behind the name

Impression, Sunrise was painted in 1872 and shows the port of Le Havre, Monet's hometown. It measures 48 by 63 centimeters (about 19 by 25 inches) and hangs in the Musée Marmottan Monet in Paris. The astronomer Donald Olson and colleagues estimated that Monet painted the scene at about 7:35 a.m. on November 13, 1872. The painting was stolen from the museum in 1985, recovered in 1990, and put back on display in 1991.

Leroy's insult worked because the painting broke the academic expectation of a finished surface. The orange sun and its reflection are patches of color that look like sketches up close and like light on water from a distance, which is exactly the effect Monet wanted.

Eight exhibitions, a shifting group

The group held eight exhibitions in Paris between 1874 and 1886. They were never a tightly unified movement with a manifesto. Participation varied, as these counts from Wikipedia show:

Artist	Impressionist exhibitions shown in (of eight)
Camille Pissarro	8 (the only one to show in all)
Berthe Morisot	7 (missed 1879, shortly after her daughter Julie was born)
Edgar Degas	7
Mary Cassatt	4
Marie Bracquemond	3
Eva Gonzalès	0

That table corrects a common simplification. Calling Pissarro "one of the few" to show at all eight understates it: according to Wikipedia's Impressionism article, he was the only one. It also shows how loosely "Impressionist" fits some people. Eva Gonzalès is often grouped with the movement and never exhibited with it.

The people, in more detail

Claude Monet. Monet is the movement's emblematic figure, in part because his working method pushed its premise furthest: painting the same subject under changing light. His series are covered below.

Pierre-Auguste Renoir. Renoir's paintings of people at leisure are among the most reproduced in the movement. For this article, his most useful contribution is the line about tubes of paint, which shows how aware the group was of the materials that made their work possible.

Edgar Degas. Degas shows why labels mislead. He is regarded as a founder of Impressionism but rejected the term and preferred to be called a "realist." He took part in seven of the eight exhibitions. He "always painted indoors," working from memory, photographs, or live models, and he insisted that "no art was ever less spontaneous than mine." More than half of his works depict dancers, and he mastered pastel by the late 1870s. His eyesight was found defective during rifle training in 1870 and deteriorated further after 1890; in his last years he was nearly blind.

Berthe Morisot. Born in 1841, Morisot first exhibited at the Paris Salon in 1864 and was accepted for six more Salons after that. Her submission was rejected in 1874, the last time she tried, and she joined the Nadar exhibition instead. She married Eugène Manet, the brother of Édouard Manet, in 1874. The Morisot sisters were forbidden to work at the Louvre unchaperoned and barred from formal training, according to Wikipedia. The critic Albert Wolff of Le Figaro wrote of the Impressionists as "five or six lunatics of which one is a woman," while a critic for Le Temps in 1877 called her the "one real Impressionist in this group." In 1894, Gustave Geffroy grouped her with Marie Bracquemond and Mary Cassatt as "Les trois grandes dames" of the movement.

Camille Pissarro. Pissarro is the only artist who showed in all eight exhibitions, which makes him the one constant across twelve years of changing line-ups.

Mary Cassatt. Cassatt showed in four of the exhibitions. Wikipedia's Japonisme article includes her Woman Bathing (La Toilette), painted in 1890 to 1891, among its examples of Japanese-print influence.

Monet's series: painting time, not just things

Monet's later career is the clearest demonstration of the shift from objects to perception. The haystacks, the cathedral, and the water lilies are all, at some level, studies of a single idea: what changes when the light changes.

Series	Dates	Size of the series	Notable facts
Haystacks (Grainstacks)	Begun late summer or early autumn 1890, continued about seven months	Core group of 25 canvases	15 shown at Durand-Ruel in May 1891; most sold within a month
Rouen Cathedral	1892 to 1893 in Rouen, reworked 1894	More than thirty paintings	20 selected for the 1895 show; Monet sold eight before the show closed
Water Lilies	Dated works from the mid-1890s to 1926	About 250 oil paintings	Eight large murals installed in two oval rooms at the Orangerie, opened May 16, 1927

Sources: Wikipedia's articles on Haystacks, the Rouen Cathedral series, and Water Lilies.

How he worked on the haystacks

By one account, which Wikipedia notes has been doubted, Monet first asked his stepdaughter Blanche Hoschedé for two canvases, one for sunny conditions and one for gray, but he soon needed many more. The Haystacks article reports that he would carry paints, easels, and unfinished canvases out each day and switch to whichever canvas matched the light of the moment, working on as many as ten or twelve paintings in a single day. He often revised the canvases back in the studio so the series would hang together.

That is a very different job from painting a scene. He was recording a relationship between a fixed object and a changing light, and the haystack was close to a pretext. In Rouen, he rented rooms across the street from the cathedral to use as temporary studios. He is quoted as saying, "Nature never stands still," and, of the difficulty of the work, "In the end, I am trying to do the impossible."

Late works and cataracts

The Water Lilies were the main focus of Monet's art for the last 31 years of his life. The Wikipedia article notes that many of the works were painted while he suffered from cataracts, a clouding of the eye's lens. That is a detail worth handling carefully. Cataracts can alter color perception, and later works are often discussed with that in mind. It does not follow that the Impressionist style itself came from poor eyesight. The movement was established in the 1870s, and Monet's haystack and cathedral series of the 1890s came well before the late water lilies.

The dealer who made a market

Radical painting does not survive on admiration alone. It needs buyers. For the Impressionists, the key figure was the dealer Paul Durand-Ruel. During the Franco-Prussian War he fled to London, where he met exiled French artists including Charles-François Daubigny, Claude Monet, and Camille Pissarro, according to Wikipedia's article on him. By 1874 he had bought 432 works by Delacroix, Corot, and Rousseau and was in financial distress. His 1882 and 1883 London exhibitions of Impressionism were unsuccessful and nearly bankrupted his business.

The turn came in America. Durand-Ruel is quoted as saying, "The two exhibitions there in 1886 saved me." He opened a permanent gallery in the United States in 1887. Between 1891 and 1922, he purchased nearly 12,000 paintings. Monet's haystack show of May 1891 shows what that market looked like: Bertha Honoré Palmer bought nine of the 15 paintings exhibited, and most sold for up to 1,000 francs each. Twenty of the haystack paintings ended up in American collections.

Prices have changed enormously since. On May 14, 2019, a Monet haystack painting from 1890 sold at Sotheby's for $110.7 million, a record for Monet and the first Impressionist work to pass $100 million. Morisot's market has moved too: in 1875 her works at a Paris auction averaged 250 francs, and in February 2013 her painting After Lunch (1881) sold for $10.9 million at Christie's, which made her the highest-priced female artist at the time. For a broader view of how artworks acquire such prices, see why abstract art sells for millions.

What Impressionism changed

Several changes are easy to document.

The exhibition model. The Impressionists organized their own shows and sold through dealers. Eight exhibitions over twelve years showed that artists could build a public without the Salon's approval, and Durand-Ruel's later reach shows that a private market could replace the old system of official commissions.

The subject. Landscapes, cafes, rivers, and railway scenes were not respectable subjects by the academic ranking. After the Impressionists, painting ordinary life was no longer a statement of rebellion.

The goal. The most lasting change was about purpose. A history painting tells you what happened. An Impressionist canvas tells you what seeing felt like at a particular hour. That idea led directly to artists who cared even less about literal resemblance.

What came next. The term Post-Impressionism covers artists who built on Impressionism's freedoms while moving away from its limits. According to Wikipedia's article on the movement, Roger Fry used the term for the 1910 Grafton Galleries exhibition Manet and the Post-Impressionists. Paul Cézanne, called the "father of Post-Impressionism," reduced objects to basic shapes while keeping Impressionism's saturated color. Vincent van Gogh used vibrant color and conspicuous brushstrokes to convey feeling. Gauguin is listed as a principal figure, and Seurat and his followers developed pointillism. These artists were dissatisfied with what they saw as the triviality of Impressionist subjects and the loss of structure.

Our related explainers, how perspective tricks the eye and the psychology of color, connect these changes to what visual perception research has found. For deeper history, how ancient cave paintings were made shows how long image-making has been tied to materials and technique, and street art and Banksy follows a later case of artists working outside the gallery system.

Common misunderstandings

"Monet said paint tubes made Impressionism possible." The famous line is Renoir's. Monet is closely tied to plein air painting, but the quote belongs to Renoir.

"They were bad painters who could not finish." The works were unfinished only by the academic standard. The visible stroke was a deliberate choice, and Degas's insistence that "no art was ever less spontaneous than mine" is a reminder that apparent spontaneity could be carefully planned.

"Impressionists all painted outdoors." Not all. Degas "always painted indoors." Many Impressionist canvases were also reworked in the studio, as Monet did with both the haystacks and the Rouen paintings.

"Impressionism was a tight-knit school." The record points the other way. Eight exhibitions drew different casts: Pissarro appeared in all eight, Morisot and Degas in seven, Cassatt in four, and Eva Gonzalès, often associated with the group, in none.

"Bad eyesight explains the blur." Monet's cataracts are documented in his late years, but the movement began decades earlier, with the 1874 exhibition. The early style came from decisions about light and color, which trace back to the tools, theories, and market conditions above.

Frequently Asked Questions

Q: When and where did Impressionism begin? A: The first group exhibition opened on April 15, 1874, in the Paris studio of the photographer Nadar and ran until May 15. About thirty artists took part. The name came from a satirical review by Louis Leroy, published April 25, 1874, which mocked Monet's Impression, Sunrise.

Q: Why was Impressionism controversial? A: By academic standards, the paintings looked unfinished. They had visible strokes, everyday subjects, and unblended colors. Leroy mocked Monet's seascape by saying that wallpaper in its embryonic state was more finished. Wolff of Le Figaro called the group "five or six lunatics of which one is a woman."

Q: What is the difference between Impressionism and Post-Impressionism? A: Impressionists focused on capturing light and fleeting effects, often outdoors. Post-Impressionists such as Cézanne, Van Gogh, Gauguin, and Seurat kept bright color and painting from life but moved toward geometric structure, expressive distortion, or systematic dots of color, because they thought Impressionism lacked structure.

Q: Did Monet really paint the same subject many times on purpose? A: Yes. His series, including about 25 core haystack canvases and more than thirty views of Rouen Cathedral, were deliberate studies of how light changes a subject. In the haystack series he reportedly switched among as many as ten or twelve canvases in a day as the light changed.

Q: Why are Impressionist paintings so expensive? A: Several factors combine: historical importance, beauty, limited supply, and a collector base that began forming in the 1880s and 1890s through dealers like Durand-Ruel. A 1890 Monet haystack sold for $110.7 million at Sotheby's on May 14, 2019, the first Impressionist work to pass $100 million.

Q: Was Berthe Morisot as important as the male Impressionists? A: By the record, yes. She showed in seven of the eight exhibitions, the only absence being 1879, shortly after her daughter was born. A critic in 1877 called her the "one real Impressionist in this group," and in 2013 one of her paintings sold for what was then the highest price for a female artist.

The takeaway

Impressionism is usually remembered as a style of soft edges and bright color. The documented story is more practical and more interesting. A sealed paint tube let painters leave the studio. A generation of color research, from Chevreul's contrast to Young and Helmholtz's three-receptor vision, gave their habits a scientific footing. A rejected-works exhibition in 1863 and a rented photographer's studio in 1874 gave them a way to show work without permission.

The deeper change was a shift in what counted as a worthy picture. When Monet carried a dozen canvases to a field and swapped them as clouds moved, the subject was no longer the haystack. It was the experience of looking, at a particular hour, under a particular light. That idea freed later artists to care about structure, feeling, or pure form, and it is why the 1874 show still marks a turning point.

Sources

• Wikipedia. Impressionism, Impression, Sunrise, Paint tube, and Post-Impressionism.
• Wikipedia. Hierarchy of genres and Japonisme.
• Wikipedia. Michel Eugène Chevreul and Young-Helmholtz theory.
• Wikipedia. Berthe Morisot, Edgar Degas, and Paul Durand-Ruel.
• Wikipedia. Haystacks (Monet), Rouen Cathedral (Monet series), and Water Lilies.

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