In Cambridge’s Market Square, a crowd of families, young people and silver-haired academics listened as Percy Bysshe Shelley’s The Masque of Anarchy was read out. Many joined in, from memory, making a collective appeal for non-violent resistance: “Rise, like lions after slumber... Ye are many – they are few.” There were moments of more garrulous protest too. During a speech criticising Boris Johnson, someone shouted: “Off with his head!”

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