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					Originally Posted by davem
					
				 
				It certainly doesn't take place in the same Middle-earth as LotR - apart from the basic geography being similar. (emphasis added) 
			
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 This must be some strange use of the word "similar" that I have not encountered before.  Either that or you meant to type "identical" and hit the wrong keys. 
 
Of course 
The Hobbit takes place in the same Middle-earth as LotR.  The characters and events of LotR tell us so. 
  
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				The general argument seems to be that because LotR began as a sequel to TH, makes use (only in reference though) to the geography of TH & is referred to in it then TH must be included.
			
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 Seems pretty watertight to me.  You, on the other hand, have only offered in evidence the different style and mood to support excluding it.