My latest feature for Jane Austen's Regency World (May/June issue) is on the advent of printing newspapers and books by steam-power, instead of a printing press worked by hand. On 29 November 1814, the first ever copy of The Times newspaper entirely printed by machine appeared.
The new printing-press, invented by Frederick Koenig, required just two child workers to tend the machine and feed it with paper, instead of two highly trained printers.
By the late 1820s, an improved version of Koenig's press, designed by Edmund Cowper and Augustus Applegarth, could print 5,000 newspaper pages every hour.
Image: An Applegarth and Cowper printing machine, with child workers. This machine was used for printing books. Luke Hebert, The Engineer’s and Mechanic’s Encyclopedia, Vol. II, Thomas Kelly, London, 1836, Nigel Wilkes Collection.