A scientist is someone who conducts scientific research to advance knowledge in an area of interest. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. It was not until the 19th century that the term scientist came into regular use after it was coined by the theologian, philosopher and historian of science William Whewell in 1833.
The introductory paragraph uses material from the Wikipedia article "Scientist" as of 04 Dec 2018, which is released under the Creative Commons Attribution-Share-Alike License 3.0.