Bibliografía y Referencias:
History.com Editors (2009). John F. Kennedy. [online] History.com. Available at: https://www.history.com/topics/us-presidents/john-f-kennedy [Accessed 9 Apr. 2019].
History.com Editors (2018). Neil Armstrong. [online] HISTORY. Available at: https://www.history.com/topics/space-exploration/neil-armstrong [Accessed 9 Apr. 2019].
Independent Staff (2019). Watch Martin Luther
Nájar, A. (2018). La matanza de Tlatelolco: el brutal golpe contra estudiantes que cambió a México para siempre. [online] BBC News Mundo. Available at: https://www.bbc.com/mundo/noticias-america-latina-45714908 [Accessed 9 Apr. 2019].
Santora, M. (2018). Lo que nos enseñó la Primavera de Praga (y el invierno de su represión). [online] Nytimes.com. Available at: https://www.nytimes.com/es/2018/08/23/primavera-praga-aniversario-50-urss/ [Accessed 9 Apr. 2019].
King's iconic 'I Have A Dream' speech 90 years after his birth. [online] The Independent. Available at: https://www.independent.co.uk/news/world/americas/martin-luther-king-i-have-a-dream-video-washington-dc-lincoln-memorial-civil-rights-movement-a8286926.html [Accessed 9 Apr. 2019].