![](http://www.alamy.com/thumbs/6/B93CD8C1-F889-4F35-AE8B-2313B60E8453/MXATHN.jpg)
. English: Johann Caspar Posner (1670-1718) German physicist and rhetorician Deutsch: Johann Caspar Posner (1670-1718) deutscher Physiker und Rhetoriker . circa 1720. Unknown 320 Johann-Jacob-Posner
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Keywords: ., /, /., 1720., circa, unknown.