This document discusses several topics from the late 19th/early 20th century United States including:
- Social Darwinism and the Americanization movement where immigrants adopted American culture
- The Social Gospel Protestant movement and popular evangelist Billy Sunday
- The 16th Amendment giving Congress power to tax incomes and the populism movement supporting general people over elites
- The establishment of the Children's Bureau to protect child labor rights
- Conservationist John Muir's work creating national parks and evangelist Dwight Moody founding the Moody Church
- Construction of the Panama Canal connecting the Atlantic and Pacific oceans and earlier construction of the Erie Canal in New York
- The term "Muckrakers" for investigative