| Event | Answer | Year |
| Passenger service opens on this underground rail link. | |
| A nerve gas on this city's subway kills thirteen people. | |
| Israel attacks its neighbours, beginning this short conflict. | |
| World War I ends on the eleventh day of this month. | |
| Spencer Perceval is the first and only Prime Minister of this country to be assassinated. | |
| Pol Pot renames this country Kampuchea. | |
| Hurricane Katrina hits this US city. | |
| This ocean liner sinks after colliding with an iceberg. | |
| Napoleon Bonaparte is exiled to this island. | |
| This terrorist figurehead is reported killed in Pakistan. | |
| An unknown man stands up to a column of tanks in this city. | |
| The Communist Manifesto, by Friedrich Engels and this man, is published. | |
| This famous diarist goes into hiding in Amsterdam. | |
| The first Modern Olympic Games open in this city. | |
| This former Beatle is assassinated in New York. | |
| This ancient Inca settlement is discovered. | |
| The US drops an atomic bomb on this Japanese city. | |
| The first Rugby Union international is played between England and this nation. | |
| This man becomes Chancellor of Germany. | |
| Horatio Nelson is killed in this naval battle. | |