Identify what you consider to be the three most significant political changes in the century preceding the start of World War I. To support your choices, you will need to highlight a minimum two major Western nations and two colonies during this period. In addition to outlining the changes, your descriptions should include details related to economics and the rising political conflicts associated with imperialism, politics, and society. Be sure to include the following points in your essay: An introduction that engages the reader and clearly presents the essay’s thesis and a summary of the main points that clarifies your point of view. Choose at least two sources from the databases in the CSU Online Library. These sources may be eBooks or articles as long as they are academic in nature. The Academic One File and America History and Life databases are good places to start your research. The organization of the essay should clearly present points arranged logically to support the thesis. The writing should be clearly organized and concise with no spelling, grammatical, or punctuation errors. Your essay should be at least two pages in length, double-spaced, and use APA style guidelines. The title and reference pages do not count towards the minimum page length requirement. Information about accessing the grading rubric for this assignment is provided below.