How do you write introduction in geography?

The Greeks had two categories of knowledge: cosmography (the universe) and geography (the earth). The scholar Eratothenes introduced the term geography in 267 B.C.. He gave geography its early identity and its mission to explore, catalogue and map areas of the earth's surface. He calculated the circumference of the earth to within 7% of today's know distance and even predicted the differential heating of a round earth by the sun. The Greeks, Romans, Arabs and Chinese advanced the field of geography by documenting their worlds. Their findings and philosophies prevailed through the Dark Ages (500-1500 A.D.).

Alexander von Humboldt (1769-1859) is considered the father of physical geography. He mapped and described the landscapes of Central and South America and parts of the U.S. and Russia.