Early Geographers 1
Early Geographers 2
Early Geographers 3
Geography Today 1
Geography Today 2
100

He made the first measurement of the size of Earth

Eratosthenes

100

His quantitative work on botanical geography laid the foundation for the field of biogeography

Alexander von Humboldt

100

He was an inventor, a diplomat, a politician and a scholar.

George Perkins Marsh

100

This movement stressed the use of empirical measurements, the testing of hypotheses, the development of mathematical models and the use of computer programs to explain geographic patterns

The Quantitative Revolution

100

This subject can be defined as the study of human activities on Earth’s surface

Human Geography

200

His second most well-known work is known as the Geography, a handbook on how to draw maps using geographical coordinates for parts of the Roman world known at the time

Ptolemy

200

They led the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase

Lewis and Clark

200

He was a geographer from the University of California at Berkeley

Carl Sauer

200

This is the process of capturing images of the Earth’s surface from airborne platforms such as satellites or airplanes

Remote Sensing

200

This field is concerned with the spatial characteristics of Earth’s physical and biological systems

Physical Geography

300

He was the first European navigator to round the southern tip of Africa in 1488

Bartholomeu Dias

300

He is considered by some to be America's first environmentalist and by recognizing the irreversible impact of man's actions on the earth

George Perkins Marsh

300

He was considered the first modern environmentalist

George Perkins Marsh

300

This is an integrated network of satellites that orbit earth broadcasting location information to handheld receivers on Earth’s surface

Global Positioning System (GPS)

300

This subject has been divided into human geography, physical geography, environmental geography and geographical techniques

Geography/Modern Geography

400

He completed four voyages across the Atlantic Ocean, opening the way for the widespread European exploration and colonization of the Americas

Christopher Columbus

400

He has been called "the dean of American historical geography"

Carl Sauer

400

His book included rough maps of the landmasses and a global grid system

Ptolemy

400

It is a family of software programs that allows geographers to map, analyze and model spatial data

Geographic Information Systems (GIS)

400

This area is located in the Middle East in the vicinity of modern-day Iraq, is one of the first areas of sedentary agriculture and urban society and was transformed by climate changes and overuse of this environment over the centuries into the dry desert that exists there today

The Fertile Crescent

500

He is best known for having planned and led the 1519 Spanish expedition to the East Indies across the Pacific to open a maritime trade route

Ferdinand Magellan

500

He coined the term geography

Eratosthenes

500

He paved the way for the formal study of human-environment relations, referred to as environmental geography or cultural ecology

Carl Sauer

500

It is an extremely diverse discipline covering several major areas of study and involving researchers with different backgrounds from all over the world

Modern Geography

500

•The major subdisciplines of this area include population geography, cultural geography, political geography, economic geography, agricultural and rural geography and urban geography

Human Geography

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