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WikiChanges is a web-based tool that exposes the revision history of Wikipedia articles using an interactive graphical timeline. See About for more information and a Greasemonkey script to embed timelines in the real Wikipedia.
Last 20 plots: Box_plot, Nobel_Prize, Deaths_in_2006, Deaths_in_2007, Hillary_Rodham_Clinton, Barack_Obama, Simcha_Bunim_Alter, Berkeley_DB, Jennifer_Sky, Apollo_11, Ad_hominem, University_of_Oxford, Grip_Ltd., Moazzam_Begg, Rob_Portman, comics, Bitcoin, Google_SketchUp, Lester_B._Pearson_School_Board, house.
Plots being processed: steve_fossett.