Timeline for the Rise of Data
When Wolfram Research set out to build Wolfram Alpha, they set out to make all knowledge computable. Last week they published a Timeline of Systematic Data and the Development of Computable Knowledge.
You can interact with the timeline online, but far cooler (I think) will be hanging the 5-foot poster of the timeline ($7.25 + shipping) that links data and computable knowledge with history, science, and culture on the walls of our Math ELITEs.
The blog post about the timeline is pretty interesting too, discussing which civilizations have tracked the most data.