51 | The Franco-American Alliance 1778 2021-04-22 |
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52 | Pierre-Simon Laplace 2021-04-08 |
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53 | The Russo-Japanese War 2021-04-01 |
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54 | David Ricardo 2021-03-25 |
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55 | Marcus Aurelius 2021-02-25 |
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56 | The Plague of Justinian 2021-01-21 |
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57 | The Cultural Revolution 2020-12-17 |
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58 | The Zong Massacre 2020-11-26 |
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59 | Maria Theresa 2020-10-22 |
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60 | Cave Art 2020-09-24 |
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