Editing Timeline of diving technology (section)

===Underwater photography===
[[File:Raco-Boutang.jpg|thumb|upright|The [[Oceanography|oceanographer]] and [[biologist]] [[Emil Racoviță]], here equipped with a [[standard diving dress]]. An underwater photograph taken by [[Louis Boutan]] ([[Banyuls-sur-Mer]], south of France, 1899).]]
* 1856: [http://www.bsoup.org/Articles/William_Thompson.php William Thompson] {{Webarchive|url=https://web.archive.org/web/20140512224600/http://www.bsoup.org/Articles/William_Thompson.php |date=12 May 2014 }} and his friend Mr Kenyon take the first under water photograph using a camera sealed in a metal box.<ref name="Milestones" /><ref name="Diving Almanac" />
* 1893: [[Louis Boutan]] makes the first under water camera becoming the first underwater photographer and produces the first clear underwater photographs.<ref name="Petapixel" /><ref name="Burgess" />
* 1900: Louis Boutan published ''La Photographie sous-marine et les progrès de la photographie'' (''The Underwater Photography and the Advances in Photography''), the first book about underwater photography.<ref name="Burgess" />