The Historiograph is a chronological linkage map that visualizes the genealogy of the microarray literature. Starting with the Pat Brown group in 19951 (Also, see Foundations) it progresses to analysis, review and implementation in the ensuing years. The 13 key papers are identified through their citation links. Most have been cited highly in the literature and heavily referenced by a group of roughly 3,000 papers with the word "microarray" appearing in the title.
To see the data from which the chart is drawn, visit:
http://garfield.library.upenn.edu/histcomp/microarray/
For a guide to reading historiograph data, visit:
http://garfield.library.upenn.edu/histcomp/guide.html