| Event | Prime Minister | Year |
| 100,000 people marched against the Vietnam War | |
| Thousands marched against the Poll Tax | |
| The first Aldermaston March took place | |
| Millions marched against the Iraq War | |
| The 'Winter of Discontent' occured | |
| Emily Davison of the Suffragette Movement was killed by a horse at the Epsom Derby | |
| The Jarrow March against unemployment occured | |
| Karl Marx wrote the Communist Manifesto | |