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Amendment which allows Congress to charge an income tax without regard to the States.
Significance: The amendment made it possible for the Congress to enact a modern, nationwide income tax which became the largest source of the government's revenue.

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Act that ended monopolies and made it illegal to form trusts.
Significance: This act prevented large, powerful monopolies to dominate other small businesses in the industry.

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An organized association of workers formed to protect and further their rights and interests.
Significance: Labor Unions went on strikes to protest the poor working conditions industrial workers had to sustain. The strikes that were performed by labor unions were sometimes good enough to win higher wages and shorter workweeks.

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This act established the right of the federal govt. to supervise railroad activities
Significance: The ICC presented problems for the railroad, corporate abuses, mismanagement, overbuilding, and competition.

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Act that required federal inspection of meat.
Significance: The act made sure meat was prepared in a sanitary way so that nobody would get sick from contaminated meat products.

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Journalists who exposed the filth and corruption in society
Significance: The books that these journalists wrote brought the problems caused by industrialization into the public's eye which led to more reforms.

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Movement in response to the problems created from industrialization
Significance: The movement involved many reforms from presidents Theodore Roosevelt, William Taft, and Woodrow Wilson that fixed most corruption from the industrialization.

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Movement to assimilate ethnic groups into the dominant culture
Significance: The movement forced immigrants to give up their culture and it made people become something they didn't want.

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Idea that wealthy Americans have a responsibility to donate money to further social progress
Significance: It promoted the fact that the rich should give their money to institutions to promote the poor to cultivate better habits.

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Party that emerged to increase the political power of farmers
Significance: The movement demanded reforms to lift the burden of debt from farmers and it wanted to give the people a greater voice in the government

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Amendment that prohibited the sale of alcohol
Significance: This amendment was meant to reduce crime and corruption but ended up fixing nothing and caused more trouble.

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Service provided housing, daycare, education, and healthcare to improve the lives of the urban poor
Significance:These community centers provided classes and college extension courses which helped in education and treated the sick.

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Made to investigate and report upon all matters pertaining to the welfare of children and child life among all classes of our people
Significance: This bureau brought more attention onto the state of children in society and brought different views on child labor.

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The concept of survival fittest in human society
Significance: It identified that the strong in human society prosper and the weak suffer. This concept also justified Laissez-Faire.

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A preference for native-born people
Significance: This was a desire to limit immigration and it led to anti-immigrant groups and a demand for immigration restrictions.

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Immigrant clusters within cities where immigrants were able to preserve their language and culture.
Significance: Immigrants can be united and keep their culture without giving in to the Americanization movement.

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When the government does not interfere with business
Significance: Robber barons liked this policy because they perform their illegal business strategies without the government objecting.

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Movement that applied Christian ethics to social problems.
Significance: This movement of reformers responded to the call to help the urban poor

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Dark and crowded multi-family apartments
Significance: As more immigrants came to America, these tenements became overcrowded and living conditions became horrible inside.

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Processing center for immigrants arriving on the East Coast
Significance: It was a major immigration station that allowed many Southern and Eastern Europeans into America.

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Amendment for the direct election of Senators by the people of a state
Significance: This amendment helped eliminate corruption and reduce the influence of political machines.

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Political group designed to keep power
Significance: They provided services to immigrants in exchange for votes so they can keep politics in their favor.

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Amendment that granted women's suffrage
Significance: This was a big step in women's rights because women were fighting for the right to vote and have a voice for a long period.

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This is when a company controls and owns all stages within the businesses on which it depends for its operation.
Significance: People who used vertical integration would have control over supplying and distributing and robber barons used this as a way to reduce costs and increase efficiency.

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A businessmen who uses ruthless business tactics.
Significance: Robber barons used tactics like forming monopolies to get rich and with that wealth, they controlled the government in an unfair way to which other businesses were getting the short end of the stick.

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This is when a company takes over or buys out a competitor in an effort to gain market share.
Significance: This process leads to creating monopolies which were illegal and dominated other businesses.