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January 10th marks the passing of Carolus Linnaeus. Linnaeus was a Swedish biologist who introduced the taxonomy scheme used for naming plants and animals. Linnaeus' binomial nomenclature names an animal by two parts: genus and spcies. Humans become Homo Sapiens and house cats become Felis catus.

Linnaeus took great pride in his work. His "Systema Naturae" book underwent many additions and introduced cover art that depicted a man giving names to animals as God created them. He was also known for the phrase "Deus creavit, Linnaeus disposuit" which is Latin for "God Creates, Linnaeus organizes".

Linnaeus was also the person who reversed Anders Celsius' temperature scale so the freezing point of water was at 0 °C instead of 100 °C. Boiling water moved from 0 °C to 100 °C. Find out what else occurred on this day in science history.


January 11, 2010 at 6:17 am
(1) Joy Schott (Hughes) says:

I stumbled on this site and could not believe I knew someone on the page. I don’t know if you remember me but I worked at the Calamus Restaurant with you and was in Julie’s class of 1987. I am the science teacher for the 5-6 grades and was interested in the “This Day in Science History”. I am definitely not as informed in science as you are and would love to converse sometime. Nice work!

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