The social, political and economic changes that American went thru the Progressive Era and the Age of the imperialism were influenced by the media.
The American newspaper industry during this started to expand massively, during this time the newspaper in english trippled.
Journalist were out and about to expose the social and political topics in very popular magazines and newspapers, they were also know as ¨muckrakers¨, because they were exposing all this issues of corruption and job explotation, they were semi-ornized journalist and writers group trying to bring this issues above water, they were using unión force, also been supported by the outcry of public opinión. It was a very exposed way to ensure the inmense power of the media in the political, social and economic ¨decisión making¨ in the country.
Technology was a precursor in this topic, because the printing presses were more fast and the efficient transportation, making information more accesible.
Also the magazines start to arise in the 1900´s, the subscribers blow up because of the national advertising.