Histomap: Visualizing the 4,000 Year History of Global Power

출처 : http://www.visualcapitalist.com/histomap/

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.