Gagarin, Yuri. "Yuri Gagarin's First Speech About His Flight Into Space." The Atlantic. Atlantic Media Company, 12 Apr. 2011. Web. 11 Dec. 2019.

“Main Page.” Wikipedia, Wikimedia Foundation, 13 Nov. 2019, www.wikipedia.org/.

“NASA.” NASA, NASA, www.nasa.gov/.

Schunak, Amanda. “6 Surprising Facts About the First Manned Space Mission.” LiveScience, Purch, www.livescience.com/33185-yuri-gagarin-vostok-1-faq-facts.html.

Staff, SPACE.com. “Yuri Gagarin, First Man in Space (Photo Gallery).” Space.com, Space, 12 Apr. 2013, www.space.com/11346-photos-yuri-gagarin-vostok1-human-spaceflight.html.

"Space Race Timeline." Royal Museums Greenwich | UNESCO World Heritage Site In London. N.p., 03 Dec. 2019. Web. 11 Dec. 2019.

Thomas, Wayne. Chicago Daily Tribune (1923-1963); May 6, 1961; ProQuest Historical Newspapers: Chicago Tribune

“Space Race Timeline.” Royal Museums Greenwich | UNESCO World Heritage Site In London, 17 Jan. 2020, www.rmg.co.uk/discover/explore/space-race-timeline.

https://docs.google.com/document/d/1V_8G6_xDGO7ABOrldXTzsUE-zH5rIDGXW2OiEh7lA2Q/edit?usp=sharing