Editing Timeline of historic inventions (section)

====1850s ====
* '''1850:''' [[William Armstrong, 1st Baron Armstrong|William Armstrong]] invents the [[hydraulic accumulator]].
* '''1851:''' [[George Jennings]] offers the first public flush toilets, accessible for a penny per visit, and in 1852 receives a UK patent for the single piece, free standing, earthenware, trap plumed, flushing, water-closet.<ref>{{Cite web |title=Model of Jenning's patent water closet {{!}} Science Museum Group Collection |url=https://collection.sciencemuseumgroup.org.uk/objects/co146940/model-of-jennings-patent-water-closet-model |access-date=12 March 2022 |website=collection.sciencemuseumgroup.org.uk |language=en}}</ref>
* '''1852:''' [[Robert Bunsen]] is the first to use a [[chemical vapor deposition]] technique.
* '''1852:''' [[Elisha Otis]] invents the safety brake elevator.<ref>Goodwin, Jason OTIS GIVING RISE TO THE MODERN CITY, Chicago, 2001: Ivan R. Dee, Publisher, pp. 5-21</ref>
* '''1852:''' [[Henri Giffard]] becomes the first person to make a manned, controlled and powered flight using a [[dirigible]].
* '''1853:''' François Coignet invents [[reinforced concrete]].
* '''1855:''' [[James Clerk Maxwell]] invents the first practical method for [[color photography]], whether chemical or electronic.
* '''1855:''' [[Henry Bessemer]] patents the [[Bessemer process]] for making steel, with improvements made by others over the following years.
* '''1856:''' [[Alexander Parkes]] invents [[parkesine]], also known as [[celluloid]], the first man-made [[plastic]].
* '''1856:''' [[James Harrison (engineer)|James Harrison]] produces the world's first practical ice making machine and refrigerator using the principle of vapour compression in Geelong, Australia.<ref>{{cite web|title=An Act to render valid a Patent heretofore granted to James Harrison for Manufacturing Ice|publisher=Flinders University, Adelaide|url=https://dspace.flinders.edu.au/dspace/bitstream/2328/2352/1/PAct21862.pdf}}</ref>
* '''1856:''' [[William Henry Perkin]] invents [[mauveine]], the first [[synthetic dye]].
* '''1857:''' [[Heinrich Geissler]] invents the [[Geissler tube]].
* '''1857:''' The [[phonautograph]], the earliest known device for recording sound, is patented and invented by Frenchman [[Édouard-Léon Scott de Martinville]].
* '''1859:''' [[Gaston Planté]] invents the [[lead-acid|lead acid battery]], the first [[rechargeable battery]].