مؤلف: Joel D. Benson

Grover Cleveland was a contradiction to almost everyone but himself. The only member of the Democratic Party to serve as chief executive between the Civil War and World War One, Cleveland incurred th …

A geographic information system (GIS) is any system that captures, stores, analyzes, manages and presents data that are linked to locations. In the simplest terms, GIS is the merging of cartography, …