Allgemeine Encyclopädie der Wissenschaften und Künste
The
Allgemeine Encyclopädie der Wissenschaften und Künste ("Universal Encyclopaedia of Sciences and Arts") was a German encyclopaedia published by
Johann Samuel Ersch and
Johann Gottfried Gruber, therefore also known as the "Ersch-Gruber." One of the most ambitious encyclopaedia projects ever, it was started in 1818 and by 1889 had progressed to the letter P and had reached 167 volumes when it was abandoned. The article about Greece alone covered 3,668 pages, spanning eight volumes.
Parts of it are available as scanned page images at http://134.76.163.65/agora_docs/141451TABLE_OF_CONTENTS.html.