UPSC Prelims 2001·GS1·history·ancient history

Who amongst the following was the first to state that the Earth was spherical?

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Last updated 23 May 2026, 3:31 pm IST
  1. AAristotle
  2. BCopernicus
  3. CPtolemyCorrect
  4. DStrabo

Explanation

The correct answer is C. While several ancient Greek thinkers proposed that the Earth was a sphere based on philosophical or observational grounds, Claudius Ptolemy is credited with being the first to provide a systematic and scientific explanation for the Earth's spherical shape in his works. He used astronomical observations and geographical coordinates to map the world, treating the Earth as a sphere to calculate positions. Although Aristotle earlier provided physical evidence like lunar eclipses, UPSC often identifies Ptolemy as the specific scholar who solidified the concept in a documented, scientific framework for geography.
history: Who amongst the following was the first to state that the Earth was spherical?

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