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The Jungle, novel by Upton Sinclair, published serially in 1905 and as a single-volume book in 1906. The most famous, influential, and enduring of all muckraking novels, The Jungle was an exposé of conditions in the Chicago stockyards. Because of the public response, the U.S. Pure Food and Drug Act was passed in 1906, and conditions in American slaughterhouses were improved.


The main plot of The Jungle follows Lithuanian immigrant Jurgis Rudkus, who came to the United States in the hope of living the American dream, and his extended family, which includes Ona, Jurgis’s wife; Elzbieta, Ona’s stepmother; Elzbieta’s six children; Marija, Ona’s cousin; and Dede Rudkus, Jurgis’s father. They all live in a small town named Packingtown in Chicago. The title of Sinclair’s novel describes the savage nature of Packingtown. Jurgis and his family, hoping for opportunity, are instead thrown into a chaotic world that requires them to constantly struggle in order to survive. Packingtown is an urban jungle: savage, unforgiving, and unrelenting.


After being scammed into renting a barely livable house, they get to work. As winter comes, the conditions at each of their places of work become even more dangerous. Dede dies. Jurgis responds to these terrible working conditions by joining a labour union. His membership reveals to him the corruption deeply embedded in the factory system, which prompts him to take English classes in the hopes of promotion. Ona gives birth to a boy who is named Antanas, and she is forced to return to work just a week later. After suffering a sprained ankle from a work-related accident, Jurgis is bedridden for three months without pay; this lack of income puts a massive strain on his family. During this time, one of Elzbieta’s children dies of food poisoning. Jurgis, finally recovered, tries to find work, but, after three months of being sedentary, he has lost some of his strength, causing all the factories to deny him work. Eventually he gets a job at a fertilizer plant—the worst possible job, because the chemicals used there kill most workers after a few years. Jurgis takes to alcohol.

Ona is pregnant for a second time and, after returning home late one night from work, is revealed to have been raped by her boss, Phil Connor. Jurgis finds and attacks Connor and then is jailed for a month. Jurgis meets Jack Duane, who is a criminal; the two become friends. When Jurgis is released from prison, he finds that his family has been evicted from their house. When he finds them, he discovers Ona prematurely in labour. Both she and the child die. Jurgis, defeated, goes on a drinking binge. Invoking Antanas’s needs, Elzbieta finally convinces Jurgis to find another job. A wealthy woman takes interest in the family and provides Jurgis with a job at a steel mill. Jurgis feels renewed hope; he has dedicated himself entirely to Antanas. However, Jurgis’s life is shattered once again when he arrives home to find Antanas drowned in a mud puddle outside their house.

Jurgis abandons the rest of the family and wanders the countryside for a while, returning to Chicago the next winter to live on his own. He finds a job digging freight tunnels, where he soon injures himself. When he recovers, he is unable to find a job and is forced to beg on the streets. He gets hold of a hundred-dollar bill after spending a night with a wealthy man named Freddie Jones. However, when he attempts to change out the hundred for smaller bills at a bar, the bartender swindles him. Jurgis attacks the bartender and lands back in jail, where he is reunited with Jack Duane. Upon release, the men commit a number of burglaries and muggings as partners. Mike Scully, a corrupt politician, eventually hires Jurgis to cross picket lines as a scab. He makes a substantial amount of money doing this.

Jurgis encounters Phil Connor again and, in a fit of rage, attacks him. Jurgis is once again sent to prison. When he is released, he has no money and survives on charity. He finds Marija, who has become a prostitute in order to support Elzbieta and her remaining children. Marija has become addicted to morphine. Jurgis is eager to find a job before he goes to see Elzbieta. One night Jurgis wanders into a socialist political rally, where he is transformed. The novel ends with a hopeful chant of revolt: “Chicago will be ours.”

Historical context and aftermath

The Jungle was written at a time when the United States was in the throes of industrialization. Working-class immigrants to the United States had limited employment choices outside of factory jobs with often terrible working conditions. Sinclair wanted to expose these conditions to the wider American public, hoping that an appeal to readers’ emotions might spark change. He was given a $500 advance in 1904 by the socialist magazine Appeal to Reason to begin his project. The results were published serially until 1906, when Doubleday published The Jungle as a novel. To do research, Sinclair had gone undercover for seven weeks inside various Chicago meatpacking plants. The novel, while containing an abundance of true events, is fictional. Jurgis Rudkus and his family are not real people. Rather, their story is an amalgamation of stories Sinclair was exposed to. He utilized the fictional immigrant family as a vehicle for nonfictional anecdotes.

When The Jungle was published, its readers were outraged—but not in the way Sinclair had hoped. Their primary concern was food quality rather than the dangerous labour practices and cruel treatment of animals that Sinclair sought to expose. “I aimed at the public’s heart, and by accident I hit it in the stomach,” he said. Using the public’s reaction to the novel, U.S. Pres. Theodore Roosevelt pushed Congress to pass both the Pure Food and Drug Act, which ensured that meatpacking plants processed their products in a sanitary manner, and the Meat Inspection Act, which required that the U.S. Department of Agriculture inspect all livestock before slaughter. The Jungle was also soon translated into dozens of languages.