Inauguration, foundation (13)
I believe the answer is:
establishment
I believe this is a double definition.
'inauguration' is the first definition.
(thesaurus)
'foundation' is the second definition.
(I've seen this before)
(Other definitions for establishment that I've seen before include "Action of setting up on a permanent basis" , "being incorporated in this" , "Act of setting up" , "Permanent staff - powerful class" , "system" .)