Explain the economic rises and falls over the Twentieth Century. Provide me with at least five key events of the US economy, describing its causes and effects. Be specific in your response using evidence from your textbook, and primary source readings to support your argument. 

I humbly ask you to write a minimum of 8-11 paragraphs with an introduction, body, and conclusion. A thesis statement is required to support the argument with facts obtained from primary and secondary sources found at https://openstax.org/details/books/us-history?Book%20details. The evidence they use must be cited using MLA or Chicago Style citations and a works cited page is required. They are only allowed to include topics that occurred between 1877 and 1990.