1. 
   Proagon
   preliminary announcement by playwright of plays to be performed at a given ancient Greek festival.
   Found op http://ablemedia.com/ctcweb/glossary/glossaryi.html
   
   
2. 
   proagon
   In Classical Athens, an official theatrical presentation taking place a few days before the Great Dionysia began.
   Found op http://www.religionfacts.com/greco-roman/glossary.htm
   
   

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