![](http://www.alamy.com/thumbs/6/04A3EA84-44EF-4E33-9BE8-D336AF4A615D/CR3RME.jpg)
Ploetz, Karl Julius, - , German author / writer, portrait, wood engraving, 1881,
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Photo credit: © INTERFOTO / Personalities / Alamy / Afripics
License: Licensed
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Keywords: 19th, author, authors, berlin, century, education, engraving, german, grammar, gymnasium, historic, historical, julius, karl, male, man, men, paedagogy, pedagogy, people, ploetz, plötz, portrait, school, schoolbook, secondary-school, teacher, teachers, wood, writer, writers