Virtual Capitalist: “Today’s infographic, created all the way back in 1931 by a man named John B. Sparks, maps the ebb and flow of global power going all the way back to 2,000 B.C. on one coherent timeline.  Histomap, published by Rand McNally in 1931, is an ambitious attempt at fitting a mountain of historical information onto a five-foot-long poster. Although the distribution of power is not quantitively defined on the x-axis, it does provide a rare example of looking at historic civilizations in relative terms. While the Roman Empire takes up a lot of real estate during its Golden Age, for example, we still get a decent look at what was happening in other parts of the world during that period. The visualization is also effective at showing the ascent and decline of various states, nations, and empires…”

See also The David Rumsey Historical Map Collection “focuses on 16th through 21st century maps of North and and South America, as well as maps of the World, Asia, Africa, Europe, and Oceania. The collection includes atlases, globes, school geographies, maritime charts, and a variety of separate maps including pocket, wall, children’s and manuscript maps. The online selection is an expanding cross section of images designed to highlight the depth and breadth of the collection. The digital images and associated descriptive data are copyright Cartography Associates. The physical map collection is housed at the David Rumsey Map Center at Stanford University.”