2/4. British science fiction has been imagining the future for centuries, but what does it tell us about our island's past and our lost tomorrows? In 1871 George Chesney's The Battle of Dorking related a tale of the unstoppable marauding Hun that gripped a nation.
Twenty-seven years later. HG Wells's The War of the Worlds brought the Martians to Earth, and the Empire crumbled in a blast of heat ray. Francis Spufford asks why Albion succumbed so often to invasion, disaster and collapse.
(Repeated on Sunday at 12.15am)