Map of the world showing all the cable routes and principal land lines, 1890.
© Science Museum / Science & Society Picture Library
Engraving by Walker and Boutall. By 1890 most countries of the world were connected by telegraph cables. Long-distance telecommunication had arrived. Illustration from 'Electricity and Magnetism' by Amedee Guillemin (1826-1893), published in London in 1891.