Ida B. Tarbell was an essential investigative journalist.
Besides being a journalist, Ida B. Tarbell was an American writer and a lecturer. She lived during the late 19th century and also during the oil boom. Furthermore, <u>she was one of the pioneers of investigative journalism and she mainly spent her life investigating about the oil industry</u> and advocating for world peace. One of her most famous works is <em>The History of the Standard Oil Company,</em> where she confrontates and exposes John Rockefeller's practices.
The innovation of American ranching in the west was that herds became so large that keeping them penned into a single location became impossible.
It established procedures for how territories could become states
