During the 1860s and early 1870s, a combination of submarine and overland telegraph lines connected British India to London, cutting communication time from months by sea to a matter of hours. Merchants and brokers used the new lines to transmit cotton, jute, and opium prices, allowing buyers and sellers across the British Empire to react to market conditions far faster than before. The system was built and operated through a mix of government and private companies, including the Indo-European Telegraph Department and the Eastern Telegraph Company. Reliability improved steadily through the 1870s as additional cable routes were added.
Relevance to Trade History
Near-instant price information between South Asia and Europe reshaped commodity trading, letting merchants hedge and respond to market swings in hours rather than weeks.
Read the full story in our article The Telegraph and Faster Commercial Communication.
Source: Institution of Engineering and Technology archive. See our Sources & Methodology page for how we select and verify references.