Paper I

Story hook

In 245 BCE, in the great library at Alexandria, a Greek polymath named Eratosthenes stuck a vertical stick (gnomon) in the ground at noon on the summer solstice in two cities — Syene (modern Aswan) and Alexandria — about 5,000 stadia apart. At Syene, the sun was directly overhead and the stick cast no shadow. At Alexandria, the same stick cast a shadow making an angle of 7°12', or one-fiftieth of a circle. If this angular difference (7°12') corresponded to 5,000 stadia of ground distance, then the full circumference of the Earth must be 50 × 5,000 = 250,000 stadia ≈ 39,690 km. The actual figure is 40,075 km. Eratosthenes was off by less than 2%, using nothing but two sticks and a measured walk. Geographia — the Greek word he coined — had begun as measurement of the Earth.

Two thousand two hundred years later, in 1953, a young geographer at Iowa named Fred K. Schaefer published Exceptionalism in Geography: A Methodological Examination in the Annals of the AAG. He attacked the dominant Hartshorne orthodoxy that geography was a unique, exceptional, idiographic (case-by-case) discipline. No, said Schaefer. Geography was a nomothetic science, seeking laws and regularities like physics. Within a decade, Brian Berry, Peter Haggett, Richard Chorley had launched the Quantitative Revolution — geography became statistics, models, equations, computer mapping.

Then in 1969, David Harvey at Bristol published Explanation in Geography, a 500-page Bible of the quantitative revolution. Four years later, in 1973, the same David Harvey recanted: Social Justice and the City declared positivism dead; geography must become Marxist, must address inequality, power, class. The discipline turned again. In 1976, Yi-Fu Tuan published Space and Place — geography as humanistic study of meaning, experience, attachment. In the 1980s and 90s came the postmodern turn (Soja, Dear), the feminist turn (McDowell, Massey), the cultural turn (Cosgrove, Daniels), the GIS turn (Dobson). Geography has been reinventing itself every fifteen years since Schaefer.

This file is the intellectual history of the discipline — what UPSC Mains Optional Geography Paper I expects you to know about geographical thought from the Greeks to GIS.

Why this matters for UPSC

Paper I Geographical Thought is asked almost every year in the Mains Optional Geography exam. Examiners favour broad evolutionary questions ("Trace the evolution of geographical thought"), specific-school questions (Vidal de la Blache's possibilism, the Quantitative Revolution, critical geography), and comparative questions (idiographic vs nomothetic, environmental determinism vs possibilism, positivism vs humanism). The candidate who knows only "Ratzel said determinism, Vidal said possibilism" will lose 30 marks. The optional rewards fluency with the post-1990 turns (critical, cultural, feminist, GIS) and the Indian contribution (Spate, Singh, Wadia, Krishnan, Husain).