Inventors of writing systems Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Paracelsus Pages in category "Inventors of writing systems" This category contains only the following page. P Paracelsus Retrieved from "http://psychology.wikia.com/wiki/Category:Inventors_of_writing_systems"