Geographical thought

20th century Age of Discovery American analysis ancient approach Arab areal areas Aristotle aspects astronomical basic Blache Carl Sauer cartography characteristics Charles Darwin China Chinese chorological classification climate concerned contributions cultural Darwin Davis discipline distribution earth earth's surface economic regions Ellen Churchill Semple Emmanuel Kant empirical environmental Europe explanation exploration feminist geography field functional geographical studies geographical thought geomorphology German Greek Hartshorne human geography Humboldt and Ritter ideas important Indian individual influence interaction knowledge land landscape laws maps mathematical Medieval method methodological modern natural regions Nature of Geography Nomothetic observations organization paradigm particular patterns period Phase phenomena philosophy physical geography political regions population Possibilism Ptolemy Quantitative Revolution Ratzel regional geography relationships Roman Russian scholars School of Thought scientific social society soil Soviet space spatial Strabo structure systematic theory types University various