Students of History. “New Weapons of World War 1.” Www.studentsofhistory.com, 2023, www.studentsofhistory.com/new-weapons-ww1.

‌

Ray, Michael. “Weapons of World War I.” Encyclopædia Britannica, 2019, www.britannica.com/list/weapons-of-world-war-i.

‌

Adamczyk, Joseph. “Great Railroad Strike of 1877 | History, Facts, & Significance.” Encyclopædia Britannica, 31 Jan. 2018, www.britannica.com/topic/Great-Railroad-Strike-of-1877.

‌

‌Little, Becky. “The 1877 Strike That Brought US Railroads to a Standstill | HISTORY.” HISTORY, 19 Sept. 2022, www.history.com/articles/1877-railroad-strike-trains.

‌

Duignan, Brian. “Plessy v. Ferguson | Summary, Facts, & Significance.” Encyclopedia Britannica, 8 Oct. 2018, www.britannica.com/event/Plessy-v-Ferguson-1896.

‌

Cornell Law School. “Plessy v. Ferguson (1896).” LII / Legal Information Institute, 2019, www.law.cornell.edu/wex/plessy_v_ferguson_(1896).

‌

Richardson, Gary. “Stock Market Crash of 1929.” Federal Reserve History, Federal Reserve History, 22 Nov. 2013, www.federalreservehistory.org/essays/stock-market-crash-of-1929.

‌

Tikkanen, Amy. “Stock Market Crash of 1929 | Summary, Causes, & Facts.” Encyclopædia Britannica, 25 Oct. 2024, www.britannica.com/event/stock-market-crash-of-1929.

‌

The Nobel Prize. “Martin Luther King Jr. Biographical.” NobelPrize.org, 2018, www.nobelprize.org/prizes/peace/1964/king/biographical/.

Carson, Clayborne. “Martin Luther King, Jr.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 26 Oct. 2018, www.britannica.com/biography/Martin-Luther-King-Jr.

‌‌

Stanford University. “Montgomery Bus Boycott.” Kinginstitute.stanford.edu, Stanford University, 2015, kinginstitute.stanford.edu/montgomery-bus-boycott.

‌

https://www.britannica.com/event/Montgomery-bus-boycott

“Drugs in the 1960s | Nostalgia Central.” Nostalgiacentral.com, 3 Aug. 2018, nostalgiacentral.com/pop-culture/fads/drugs-in-the-1960s/.

‌Mold, Alex. “Illicit Drugs and the Rise of Epidemiology during the 1960s.” Journal of Epidemiology & Community Health, vol. 61, no. 4, 1 Apr. 2007, pp. 278–281, www.ncbi.nlm.nih.gov/pmc/articles/PMC2652931/, https://doi.org/10.1136/jech.2006.046334.

‌

NAACP. “The 1963 March on Washington.” Naacp.org, NAACP, 2022, naacp.org/find-resources/history-explained/1963-march-washington.

‌

National Park Service. “March on Washington for Jobs and Freedom (U.S. National Park Service).” Nps.gov, National Park Service, 2017, www.nps.gov/articles/march-on-washington.htm.

‌