It's impossible to pinpoint a single inventor of the classification system. The concept of classifying things has been around for millennia, evolving and changing over time.

Here's a breakdown of how classification has developed:

* Ancient Times: Early civilizations used rudimentary systems for organizing objects, animals, and plants. For example, ancient Greeks categorized animals based on their habitat (land, sea, air).

* Linnaeus: Carl Linnaeus, an 18th-century Swedish botanist, is often considered the "father of taxonomy" because he formalized the system of binomial nomenclature (giving each organism a two-part scientific name). He also developed a hierarchical system of classifying living things into kingdoms, classes, orders, genera, and species.

* Modern Classification: Over time, the Linnaean system has been refined and expanded. Advances in genetics and molecular biology have led to the inclusion of phylogenetic (evolutionary) relationships in modern classification systems.

Therefore, it's more accurate to say that classification systems have evolved over time, with many individuals and groups contributing to their development.

If you're interested in learning more about specific classification systems (like the Dewey Decimal System for libraries or the periodic table for chemical elements), please specify and I can provide more information!