Born on this date in 1707 was Carl Linnaeus, Swedish botanist, physician and zoologist who established conventions for the naming of living organisms that became universally accepted in the scientific world.
He was born in Sweden. His father was a curate, who taught his son Latin at a young age. Carl would sometimes use the Latin form of his name, Carolus Linnæus.
Carl’s mother wanted him to be a priest and even had him enrolled in priest training school, but he didn’t do well there and ended up having to leave.
He loved plants from a young age. He wasn’t very interested in the subjects his teachers expected him to be good at: Greek, Hebrew, mathematics and theology. He much preferred studying plants. One teacher did encourage his interest in botany by letting him work in his garden. His interest in science led his teachers to suggest a career in medicine, so he was given lessons in anatomy and physiology.
He studied medicine in Sweden but was expected to finish his degree elsewhere, so he finished his studies at the University of Harderwijk in the Netherlands, where he studied the causes of malaria and studied some more at the University of Leiden.
When he returned to Sweden he met Sara Elisabeth Moraeus and wanted to marry her. Her father said no until he’d finished his studies and got a job, proving that he’d be able to support her. He didn’t practice as a doctor for very long. He took a position as professor of medicine at Uppsala and later returned to his first love and became the head of the botanical garden.
He’s famous for his work on classifying living things and giving them the two part Latin names we use today. He has been called the "father of modern taxonomy" (the science of classifying living things), Princeps botanicorum (Prince of Botanists) and "The Pliny of the North". He was also the first scientist to treat the human species as an animal to be classified like any other. It was he who coined the name Homo Sapiens.
He held grudges and on at least two occasions named things after people he didn’t like. Siegesbeckia, a weed that produces an evil smelling fluid, was named after Johann Siegesbeck, a German scientist who was critical of his work. Aphanus rolandri, a type of beetle, was named after one of his students, Daniel Rolander, who’d refused to show Linnaeus his plant collection.
One might expect there are some Amphibians named after his enemies too, since Linnaeus was really not a fan of that particular class of animal. He wrote terribly insulting things about amphibians, describing them as “most terrible and vile animals… ghastly colour, cartilaginous skeleton, foul skin, fierce face, a meditative gaze, a foul odour, a harsh call, a squalid habitat, and terrible venom… an unsightly, hideous naked mob.” He did admit, however, that some Frogs sang beautifully.
The Swedish king, Adolf Fredrik, made Linnaeus a noble in 1757, after which he changed his name to Carl Linné.
He has some plants named after him. Linnaea and Linnaeosicyos, two kinds of flowering plant.













