Resources for the timeline:
“The Origins of ‘Big Data’ : An Etymological Detective Story” By Steve Lohr (The New York Times, 2013)
“On the Origin(s) and Development of the Term “Big Data””, Francis X. Diebold (2012) University of Pennsylvania
Google Trend (2013) for the red line (search for “big data”)
Other resourses
cosimoaccoto.com 