| 31. | *1850s-1860s : Railroads begin using the electric telegraph to control train movements through the use of train orders.
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| 32. | In 1836 Elderton, David Alter invented the electric telegraph, one year before the popular Morse telegraph was invented.
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| 33. | The electric telegraph was installed in 1846 47 on the York & Newcastle and Newcastle & Berwick railways.
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| 34. | In 1852 the Company installed the electric telegraph throughout its main line, at the time a remarkably progressive investment.
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| 35. | The Army Post Office Corps was subsumed into the Royal Engineers because of the Engineers'interest in electric telegraph systems.
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| 36. | He was as director of the Electric Telegraph Company, and with Joseph Adshead he established the Manchester Night Asylum.
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| 37. | The Electric Telegraph Company of Ireland used the system in 1852, and Dering was made a Great Northern Railway.
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| 38. | From this point the use of the electric telegraph started to grow on the new railways being built from London.
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| 39. | An electric telegraph station was built in 1846, and in 1856 the North Pennsylvania Railroad completed a branch to Doylestown.
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| 40. | BT's origins date back to the founding of the Electric Telegraph Company in 1846 which developed a nationwide communications network.
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