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1.A Roman general and statesman. A member of the First Triumvirate, he led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, and subsequently became dictator of Rome from 49 BC until his assassination in 44 BC.
Nero
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Augustus Caesar
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Mark Antony
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Julius Caesar
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2.A British explorer, navigator, cartographer, and captain in the British Royal Navy, famous for his three voyages between 1768 and 1779 in the Pacific Ocean and to New Zealand and Australia in particular.
Abel Tasman
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James Cook
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Francis Drake
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Ferdinand Magellan
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3.Queen of the Ptolemaic Kingdom of Egypt from 51 to 30 BC, and its last active ruler.
Nefertiti
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Sobekneferu
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Hatshepsut
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Cleopatra
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4.The founder and first Great Khan of the Mongol Empire, which became the largest contiguous empire in history after his death. He came to power by uniting many of the nomadic tribes of the Mongol steppe and being proclaimed the universal ruler of the Mongols.
Genghis Khan
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Kublai Khan
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Ogedei Khan
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Mongke Khan
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5.A German astronomer, mathematician, astrologer, natural philosopher and writer on music.
Nicolaus Copernicus
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Galileo Galilei
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Johannes Kepler
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Isaac Newton
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6.An American former astronaut, engineer and fighter pilot. He made three spacewalks as pilot of the 1966 Gemini 12 mission.
Buzz Aldrin
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Neil Armstrong
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Alan Shephard
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Gus Grissom
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7.An Anglo-Irish Antarctic explorer who led three British expeditions to the Antarctic. He was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration.
Roald Amundsen
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Ernest Shackleton
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Robert Falcon Scott
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James Clark Ross
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8.An American professional baseball player who became the first African American to play in Major League Baseball in the modern era.
Larry Doby
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Willie Mays
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Moses Fleetwood
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Jackie Robinson
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9.An American aviation pioneer and writer. She was the first female aviator to fly solo across the Atlantic Ocean.
Valentina Tereshkova
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Harriet Quimby
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Amelia Earhart
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Bessie Coleman
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10.A Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity.
A good selection of historical questions with the exception of question 8 which, in my view, is completely irrelevant. Could you consider replacing it with something genuinely historical?
That person was the first African American to play pro baseball. Before that the pro leagues were racially segregated, and his entry into the league broke the barrier for other non-white players to join too. I would say he was extremely important and historically relevant.