Mastering ArcGIS Pro

by Maribeth H. Price

aspatial data, meaning that it is not tied, or is only incidentally tied, to a location on the earth’s surface.

Ptolemy, an astronomer and geographer

from the second century B.C., created one of the earliest known atlases, a collection of world, regional, and local maps and advice on how to draw them, which remained essentially unknown to Europeans until the 15th century.

Gerhard Mercator, who published his famous world map in 1569.

measurement of a degree of longitude by Jean ...

1859, French photographer and balloonist Gaspard Felix Tournachon founded the art of remote sensing by carrying la...

oft-cited early example of spatial analysis, Dr. John Snow mapped cholera deaths in centra...