Linnaeus classified living organism into two groups Regnum Animale ('animal kingdom') for animals and Regnum Vegetabile ('vegetable kingdom'. He didn't included other living organism such as bacteria and also fungi.
Carl Linnaeus, Father of Classification
Carl Linnaeus
The first classification system was developed by Aristotle in ancient Greece around 350 BCE. His work laid the foundation for future classification systems, including the modern scientific classification system developed by Carl Linnaeus in the 18th century.
Carl Linnaeus' book on plant classification is called "Species Plantarum." It was published in 1753 and is considered a foundational work in botanical taxonomy.
Carl Linnaeus
carl von linnaeus
Carl Linnaeus is the man responsible for our organism classification system. He attended Lund, Uppsala, and the University of Harderwijk.
Carl Linne, who after enoblement was known as Carl von Linne, and eventually Latinized his name to Carl Linneaeus. His stature in science is suggested by him being the '~type specimen' of humankind.
Carl Linnaeus lived in Sweden, primarily in the city of Uppsala. He was a Swedish botanist, zoologist, and physician known for his work in developing the system of binomial nomenclature, the classification system for living organisms.
Carolus Linnaeus (1707-1778) developed binomial nomenclature, the formal naming of species, as part of his work in the taxonomic classification of living things.
Carl Linnaeus
No one really came up with 7 levels of classification because it was invented by groups of scientists over time.