Here is the history and milestones for Hadoop, between 2006 and 2014.
Historical Google research papers (2006):
- Map-Reduce: http://research.google.com/archive/mapreduce.html
- The Google file system: http://research.google.com/archive/gfs.html
- BigTable: http://static.googleusercontent.com/media/research.google.com/en/us...
Number of posting per month on the very active Apache Hadoop mailing list.
Number of Google searches for Hadoop, compared with data science, big data, artificial intelligence, and machine learning. The letters A, B, C, etc. on each curve represents milestones for the keyword in question. Click on the link to check what these milestones are.