From the beginning of time!


*Greek philosopher
*divided organisms into 2 groups - plants and animals
*divided animals into blood and bloodless
*also divided animals into 3 groups according to how they moved - walking, flying, or swimming (land, air, or water)

Andrea Caesalpino 1519–1603

used first method in arranging plants

John Ray (1627–1705)

did important work on plants, animals, and natural theology

Augustus Quirinus Rivinus (1652–1723)

classified plants by characteristics

Joseph Pitton de Tournefort (1656–1708)

introduced an even more sophisticated hierarchy of class, section, genus, and species.

Carl Linnaeus (1707 – 1778)

created the modern scheme of binomial nomenclature