William H PerryWilliam H. Perry is a professional lexicographer with more than thirty years experience in constructing and searching large evidentiary and documentary research databases for special projects. For this work, Mr Perry constructed a database containing in machine-readable format, all significant philosophical, religious, scientific, political, and economic primary and secondary sources from the beginnings of Western and Middle Eastern civilization until the end of the nineteenth century, searchable by concept. Read More Read Less