April 1, 1991
A "crude, flat disc" made by Babylonians is the oldest world map; Greeks speculate on the world and come up with a lot of answers,...Read more
April 8, 1991
When overseas trade for spices and other precious commodities sparked bitter rivalries, charts became instruments of wealth and po...Read more
April 15, 1991
Explorers including Christopher Columbus, Hernando Cortez, and Sir Walter Raleigh stake claims for their countries, Holland's snea...Read more
April 22, 1991
France shrinks, or at least appears to, when accurate maps are surveyed. As the British cement their rule over India with a grand ...Read more
April 29, 1991
The aerial camera helps mapmaking. In the twentieth century, surveying aids the search for oil and gold, radar maps the Brazilian ...Read more
May 6, 1991
The beneficial effect of maps—of ambulance routes, air traffic control, forest fires, natural disaster and disease patterns, globa...Read more