Often referred to as the quiet Beatle, George Harrison’s demure and slightly moody visage can be seen peeking out at us from countless Beatles and solo albums. It seemed that George was such a powerful presence, he really didn’t even need to speak. This was the man who bid us to listen while his guitar gently wept.

Bob Hope was the kind of entertainer who only comes along once in a lifetime. Spanning the decades, he worked through just about every era of the 20th century. Hope grew up doing his best vaudeville routine and ended up performing far and wide with the USO during World War II and the wars in Korea, Vietnam, Lebanon, Iran, and Iraq. In later life, he slowed down a bit, but he still found time to perform both in movies and in person. 

Frank Sinatra’s very name seems synonymous with legend. Sinatra grew up in hardscrabble Hoboken, New Jersey, and rose to prominence as one of music’s first superstars. While becoming one of the best-selling artists of all time, he remade popular music in his own image. From his crooning days on a street corner in Hoboken to his waltzing across the world stage, the swagger of Frank Sinatra was unmistakable.

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.

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.

Long before Australia started to be considered one of the best places in the world to live, it was thought to be completely unlivable. In the 15th century, the European race to claim land began. Despite the fact that Australia was a large landmass, no nation believed it was worth colonizing. The land was claimed by the Netherlands. However, little exploration happened there. Many countries actually believed it to be uninhabitable. However, the Aboriginal populations had already been thriving on the land for millennia.

What would become the nation of Yugoslavia was created in the turbulent period following the end of World War I in 1918, but ended 74 years later in the chaos of another war. In its relatively brief history, Yugoslavia endured invasion during World War II and a range of styles of leadership that included an autocratic king, an even more autocratic socialist dictator, as well as brief periods of parliamentary democracy.

Dean Martin was a natural entertainer, known not only for his singing ability but also for his great showmanship on the stage. With Martin, it wasn’t just about the song—it was about the whole package. With songs such as “That’s Amore” and movies like Rio Bravo, he took the world by storm. Later, Dean Martin, along with other famous entertainers such as Frank Sinatra and Sammy Davis, Jr., forged the ultimate group of performers: The Rat Pack. No one could keep Dean Martin’s spirit down for long. This is his life—this is his story.

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.