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| Sound | 13 | 2023-11-28 | |||
| Assassinations | 12 | 2023-11-23 | |||
| Las Vegas | 10 | 2023-11-22 | |||
| The Inca Empire | 11 | 2023-11-14 | |||
| Russia under Putin | 10 | 2023-11-09 | |||
| Sporting Rivalries | 7 | 2023-11-02 | |||
| UN | 17 | 2023-10-23 | |||
| Walls | 10 | 2023-10-20 | |||
| East Germany/GDR | 16 | 2023-10-15 | |||
| Mexico | 42 | 2023-10-09 | |||
| Germany | 10 | 2023-10-05 | |||
| Cameroon | 10 | 2023-09-30 | |||
| Nuclear power | 9 | 2023-09-25 | |||
| Sci-fi books | 12 | 2023-09-15 | |||
| Sail Ships | 32 | 2023-09-10 | |||
| North Korea | 11 | 2023-09-08 | |||
| Vietnam | 12 | 2023-09-01 | |||
| Estonia | 19 | 2023-08-20 | |||
| Ireland | 36 | 2023-08-10 | |||
| Bolivia | 12 | 2023-08-06 | |||
| Barack Obama | 11 | 2023-08-03 | |||
| Miami | 10 | 2023-07-27 | |||
| Egypt | 20 | 2023-07-22 | |||
| Greek beverages | 10 | 2023-07-18 | |||
| Greenland | 12 | 2023-06-21 | |||
| Philippines | 19 | 2023-06-12 | |||
| Portugal | 40 | 2023-06-09 | |||
| Clint Eastwood | 11 | 2023-05-31 | |||
| West Germany | 13 | 2023-05-23 | |||
| About Volcanoes | 13 | 2023-05-20 | |||
| Volcanoes | 10 | 2023-05-20 | |||
| Paraguay | 12 | 2023-05-14 | |||
| Ecuador | 10 | 2023-05-13 | |||
| US history | 43 | 2023-05-09 | |||
| Netherlands | 10 | 2023-04-30 | |||
| Al Pacino | 10 | 2023-04-25 | |||
| Airplane accidents | 10 | 2023-04-10 | |||
| Melanesia | 32 | 2023-04-09 | |||
| NATO | 15 | 2023-04-04 | |||
| The Falklands War | 9 | 2023-04-02 | |||
| Bangladesh | 14 | 2023-03-26 | |||
| Jerry Lewis | 12 | 2023-03-16 | |||
| Spain | 34 | 2023-03-09 | |||
| Bulgaria | 20 | 2023-03-03 | |||
| World Trade Center | 9 | 2023-02-26 | |||
| Ukraine | 13 | 2023-02-24 | |||
| Nirvana | 10 | 2023-02-20 | |||
| Fidel Castro | 12 | 2023-02-19 | |||
| Super Bowl | 11 | 2023-02-16 | |||
| Lithuania | 14 | 2023-02-16 | |||
| Afghanistan | 15 | 2023-02-15 | |||
| Anno 2022 | 32 | 2023-02-09 | |||
| Svalbard | 10 | 2023-02-09 | |||
| Iceland | 18 | 2023-02-01 | |||
| Nauru | 12 | 2023-01-31 | |||
| Romania | 9 | 2023-01-24 | |||
| Social media | 10 | 2023-01-23 | |||
| Electricity basics | 12 | 2023-01-16 | |||
| Costa del Sol | 10 | 2023-01-10 | |||
| Mesopotamia | 16 | 2023-01-09 |