The Fifteenth Amendment: https://www.britannica.com/topic/Fifteenth-Amendment

The Election of 1876: https://www.rbhayes.org/hayes/disputed-election-of-1876/

Plessy v. Ferguson: https://www.youtube.com/watch?v=Ldd0PLPG3E0

Transcontinental Railroad:
https://www.youtube.com/watch?v=moDvjW9Z6_I

Massacre at Wounded Knee: https://s3-us-west-2.amazonaws.com/warisboring.com/images/962px-thumbnail-750x350.jpg

Dawes General Allotment Act of 1887:
https://www.britannica.com/topic/Dawes-General-Allotment-Act

The Homestead and Morrill Acts: https://www.loc.gov/rr/program/bib/ourdocs/homestead.html

The Bessemer Process: https://www.steelmuseum.org/railroad_exhibit_2015/process_bessemer.cfm

Growth of Invention late 1800s: https://www.youtube.com/watch?v=DQ78RKcN4r0

The Rise of Big Business: http://www.american-historama.org/1866-1881-reconstruction-era/rise-of-big-business.htm

The Antitrust Movement: https://sites.google.com/site/mshochhonorsusiiwebsite/home/the-rise-of-industrial-america/the-antitrust-movement

The Labor Movement: https://i.kinja-img.com/gawker-media/image/upload/c_fill,f_auto,fl_progressive,g_center,h_675,pg_1,q_80,w_1200/ms6hik3ia0xqkrex0y2m.jpg

The Rise of Immigration - late 1800s: http://www.eyewitnesstohistory.com/snpim1.htm

The Growth of Cities: https://www.youtube.com/watch?v=7LHakm3G4ck

Tenement Life: https://www.history.com/.image/c_fit%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_620/MTU5Mzk0OTQ3NjIyMTE4Njcz/jacob-riis-tenements-514877022.jpg

The Growth of Mass Communication - late 1800s: http://www.digitalhistory.uh.edu/disp_textbook.cfm?smtID=2&psid=3315

Rise of Political Machines: https://www.britannica.com/topic/political-machine

Progressive Reform: https://www.cliffsnotes.com/study-guides/history/us-history-ii/the-progressive-era-19001920/political-and-social-reforms

Rise of Labor Organisations: https://www.investopedia.com/financial-edge/0113/the-history-of-unions-in-the-united-states.aspx

Women's suffrage and Temperance Movement: https://religionnews.com/wp-content/uploads/2019/06/webRNS-Suffrage-Religion1-060419.jpg

Election of 1912: https://www.youtube.com/watch?v=oWKzNvgRKoQ

Isolationism vs. Imperialism: https://www.youtube.com/watch?v=9f3H

Assassination of Archduke Franz Ferdinand: https://www.youtube.com/watch?v=dHSQAEam2yc

New Technology of World War I: https://static.howstuffworks.com/gif/willow/historical-introduction-to-world-war-i0.gif

Presidents Wilson's Fourteen Points: https://www.britannica.com/event/Fourteen-Points

Treaty of Versailles: https://www.wbur.org/hereandnow/2017/08/14/treaty-versailles-michael-neiberg