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            Created by
            
    
  
      jeff
              on
            
              
  3/22/2012
        

        
        

          Date of origination
            
              en
        


          
          

            
              mid:
              /m/0j5gr8w
            
            
              permission:
              
                
                  /m/0hmw8fx
                
              
            
            
              type:
              
                /base/schemastaging/concept
              
            
          


          
          

              

                The date this concept was first conceived (for ancient concepts, this will necessarily be approximate; for more recent ones, this should correspond to date of publication or presentation.)
                [ - ]
              

              
          

        


      
      

        
  
        
  
      

  


  

    

          
  

    
      

        
          /base/schemastaging/concept
        
        
          
            Date of origination
            master
            unique
          
         
        
          
            /type/datetime
                          
      

      

        
      

    
  

  

    
      
Expected Type
      Disambiguating
      Unique
      Hidden
    

    
      

        
          /type/datetime
        
        
          False
        
        
          True
        
        
          False
            
      

    
  

    

    
  

    

      
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