Roy Orbison possessed a voice that commanded immediate attention. He may have appeared meek and mild-mannered on the surface, yet beneath this facade lay an inner world brimming with passion and fervor. Orbison’s style was innovative and avant-garde, almost as if he were an embodiment of alternative rock before the term even entered the lexicon. He represented the emotive, tender facet of rock and roll, a stark contrast to his contemporaries, who were often swathed in leather jackets and exuded the confidence of a typical rockstar.

Alan Turing had a radical and ingenious mind. He is considered one of the fathers of artificial intelligence, and his theories on this matter range from purely mechanical to almost spiritual. During World War II, his decryption of the Nazis’ Enigma codes proved vital for the Allied victory over the Axis powers. Turing’s fingerprints are everywhere, and yet his own country for quite some time failed to acknowledge it.

Margaret Thatcher, famously known as the “Iron Lady” due to her tough-as-nails personality, was not only Britain’s first female prime minister, but one of the most influential political leaders of the 20th century. She commanded the spotlight at a crucial moment in both British and world history. Although she had her problems along the way—dealing with the Cold War, incursions at the Falkland Islands, and attacks by the IRA, at one point almost losing her life in the process—she rose to the occasion.

The creation of the Union of Soviet Socialist Republics (USSR) in 1922 was one of the defining events of the 20th century. This new federation, created to embody the ideals of communism and the notion of rule by the people, was intended to be different from any other nation in the world. This utopian vision inspired people around the world, and soon, communism became an international movement. However, the history of the Soviet Union did not develop in the way its originators envisaged.

Robert Oppenheimer had a lot resting on his shoulders. During the Second World War, he was tasked with directing the development of the world’s first nuclear arsenal. Known as the Manhattan Project, this super-secretive wartime project had the stoic visage of Oppenheimer overseeing the greatest experiment ever conducted by humankind. Much had happened in Oppenheimer’s life to lead him to this point, and much would subsequently take place after, but this moment was indeed the pinnacle of his career and his life.