Jarvis Cocker uncovers an album made by Sir John Betjeman in 1974.
The British cabinet is split over whether to join the war.
The German government receives word that Britain will remain neutral.
Prof Kathy Willis explores the discovery of new laws to create plant hybrids.
Panic in the financial markets as the Bank of England is forced to close.
Prof Kathy Willis examines how one man's flower was turning into another man's weed.
Jonathan Freedland on attitudes to young people who volunteer to fight in foreign wars.
The tsar orders a full mobilisation of the Russian army.
Prof Kathy Willis examines Charles Darwin's use of orchids as a scientific tool.
The Kaiser sends a telegram to the Tsar to try to prevent war.
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