The hardest part of this would be getting the data. What number would you say most represents "technological growth"? Has anyone been tracking that number for the past few centuries? Somewhat related, a friend of mine made this graph. He scraped Wikipedia to find what nations were each other's "predecessors" and "successors," and formed a directed graph showing the breaking up and reformation of nations throughout history. Made possible by the human curation provided by Wikipedia. Probably some of this type of data exists on the Internet if you take the time to trawl for it.
I think census data would be a big source. As for "technological growth": this tool would not treat data in that manner, per se. It doesn't have in its databases a column labelled "technological growth". In its database it uses hard data (how many homes have tvs for a given year, who has internet out of the total population, what ruling party was in power, population demographics, who was president, how many cars did people own, how many people rented vs owned, what was the GPO of a given economy for a given year, etc) and only when you query for certain trends does it export those data points and prettifies it into a visual trend, much like the data sheet for an Excel chart does.
