Map of Earth showing both physical features and political boundaries from the 2023 CIA World Factbook.

Geography (from the Ancient Greek γεωγραφία, literally meaning “description of the Earth”) is a science that, for several thousand years, has been trying to carefully explain what exactly exists on the planet, where it is located, why it is located there, and why people stubbornly continue building cities in places with questionable climates. At first glance, geography appears to be a discipline about maps, rivers, and capitals, but in reality it is far more ambitious. It seeks to understand the Earth in all its complexity: from mountains and oceans to state borders, transportation routes, and humanity’s peculiar ability to settle literally anywhere a house can be built and Wi-Fi can be installed.

Geography is also known as a “bridge between the natural and social sciences” because it has to deal simultaneously with tectonic plates and human behavior — two systems that are equally fond of producing unexpected consequences. Although geography formally concerns itself with Earth, its approach proved so universal that people eventually began applying it to other celestial bodies as well. In other words, after several thousand years of mapping their own planet, humanity decided: “Why not start describing Mars too?” The history of geography stretches across different civilizations and eras, because nearly every people at some point realized that it would probably be useful to know where they were and what lay beyond the horizon. One of the earliest attempts to create a world map is considered to be the Babylonian map of the 9th century BCE — an early version of humanity’s desire to draw the entire world on something smaller than the world itself. A particularly important role in the development of geography was played by Eratosthenes — the man who not only introduced the term “geography,” but also took the Earth seriously enough to calculate its size using nothing more than the sun, shadows, and a great deal of confidence in his own calculations.

Later, Claudius Ptolemy officially formalized the word γεωγραφία in the title of his book, effectively turning geography into a discipline with its own branding. During the Middle Ages, Islamic scholars carried the torch forward, particularly Muhammad al-Idrisi, who created detailed maps of the world at a time when most people were still debating how safe long-distance travel really was. Then came the Age of Discovery, and Europe suddenly realized that entire continents were missing from its maps. This led to the mass cartography of the New World and a general update of humanity’s understanding of the planet. Modern geography has gone even further: today it uses satellites, geographic information systems, digital maps, and geomatics — meaning humanity has progressed from “drawing the world by hand” to “analyzing it through space and computers,” although the discipline’s central question has remained the same: what is located where, and why it ended up there in the first place.

See also

• ✓ Earth
• ✓ Science
• ✓ Astronomy