The Worldmapper website displays world maps where the modern day political terroritories have been resized on each map according to a subject of interest. For example, below are the maps resized for population during the year 1 a.d. and the year 1500 a.d. Of note is the increase in size of Japan in 1500 compared to 1. Africa also changed "shape" in 1500 compared to 1. Other maps at the site include "Total Children", "Total Elderly", "Refugee Destination", "Net Emigration", and much, much more. It's definitely worth the time to take a look, not just for the coolness factor but also to see if a map pertains to a particular interest or cause you may have.

Population in the year 1 a.d.

Population in the year 1500 a.d.

