13. The computer program product of claim 12 , wherein determining the frequency of occurrence of the associated key temporal terms or time spans further comprises performing pattern recognition on the graph to identify portions of the graph representing potential temporal categorizations for the domain.
13. The computer program product of claim 12 , wherein determining the frequency of occurrence of the associated key temporal terms or time spans further comprises performing pattern recognition on the graph to identify portions of the graph representing potential temporal categorizations for the domain. 15. The computer program product of claim 13 , wherein identifying one or more key temporal terms or time spans across all of the key terms or key concepts referenced in the plurality of sources of content associated with the domain comprises: generating a graph of the number of occurrences of references to the key term or key concept in association with the key temporal terms or time spans for each key term or key concept; and identifying a most frequently occurring pattern occurring across all of the graphs for all of the key terms or key concepts referenced in the plurality of sources of content associated with the domain.