Editing 1798 (section)

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* [[Edward Jenner]] publishes ''An Inquiry into the Causes and Effects of the Variolæ Vaccinæ'', describing the [[smallpox vaccine]], in London.
* [[Thomas Malthus]] publishes ''[[An Essay on the Principle of Population]]'' (anonymously) in London.
* [[Nathan Mayer Rothschild]] moves from [[Frankfurt]] in the [[Holy Roman Empire]] to England, settling up in business as a textile trader and financier in [[Manchester]].
* [[Alois Senefelder]] invents [[lithography]].
* The first census in Brazil counts 2 million blacks in a total population of 3.25&nbsp;million.
* The [[Ayrshire (Earl of Carrick's Own) Yeomanry]], a [[British Army]] [[Yeomanry]] [[Cavalry]] Regiment, formed by The [[Marquess of Ailsa|Earl of Cassillis]] at [[Culzean Castle]], Ayrshire in 1794, is adopted onto the British [[Army List]].
* The [[platypus]] is first discovered by Europeans.</onlyinclude>