Michael Friendly and Daniel J. Denis, who are both Psychology Professors (Friendly at York University in Ontario, Canada and Denis at The University of Montana), have put together a comprehensive timeline showing “Milestones in the history of thematic cartography, statistical graphics, and data visualization.”

The dynamic timeline categorizes significant events and achievements as cartography, technology or statistics and graphics.  Each milestone is clickable with a summary and a link to further information. The timeline can be dragged left and right to either go back in time or forward.

(Via Slashgeo)