Do not blame me.
OK, http://www.wordreference.com/English/definition.asp?en=historicism:
Source: The Collins English Dictionary © 2000 HarperCollins Publishers: historicism noun 1 the belief that natural laws govern historical events which in turn determine social and cultural phenomena 2 the doctrine that each period of history has its own beliefs and values inapplicable to any other, so that nothing can be understood independently of its historical context 3 the conduct of any enquiry in accordance with these views 4 excessive emphasis on history, historicism, past styles, etc. his'toricist noun, adjective
Thanks. Maybe after a couple years of reading I will be able to join this discussion.