Key term for OCR GCSE History B, used in Wealth.
A communication system that transmitted electrical signals over wires, allowing near-instant messaging across the British Empire.
Electric telegraph appears in OCR GCSE History B revision content for Britain in Peace and War (1900–1918), especially Wealth and Britain’s power and wealth.
Create a free account to access OCR GCSE History B revision notes, track progress, and practise related key terms.
