Which ancient thinker is attributed with the view that the Earth is a flat disk supporting a hemispherical sky?

• A. Homer
• B. Aristotle
• C. Copernicus
• D. Pythagoras

Answer: (A)

Understanding ancient cosmologies means looking at how people pictured the world and what sits above it. In early mythic and poetic thought, the Earth is often imagined as a flat disk surrounded by water, with the sky as a hemispherical dome overhead. This kind of imagery is strongly associated with Homer, whose epic language reflects a worldview where the world is a flat plane and the heavens form a vault above it. Later thinkers introduced more scientific models: Aristotle argued for a spherical Earth, while Copernicus proposed a sun-centered system, and Pythagoras and his followers also leaned toward celestial spheres in their cosmology. So the description of a flat disk supporting a hemispherical sky aligns with Homer’s traditional, mythic depiction, making him the best fit among the choices.