From the beginning of time!
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