Changes

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'''Causality'''  denotes a necessary relationship between one event (called cause) and another event called effect which is the direct  consequence (result) of the first. [http://dictionary.reference.com/search?q=Causality&x=35&y=25 Random House Unabridged Dictionary]

'''Causality'''  denotes a necessary relationship between one event (called cause) and another event called effect which is the direct  consequence (result) of the first. [http://dictionary.reference.com/search?q=Causality&x=35&y=25 Random House Unabridged Dictionary]