roughbarked said:

Divine Angel said:

bq.
A century after Aristarchus, a Hellenistic astronomer named Seleucus of Seleucia actively defended the heliocentric theory, reportedly using reasoning related to the movement of the tides. However, without the telescopic precision required to detect stellar parallax, or a new framework of physics to explain terrestrial motion, heliocentrism remained a minority view. The geocentric model prevailed for centuries not because ancient scholars were unscientific, but because the best empirical evidence available to the naked eye overwhelmingly supported a stationary Earth.”

And now we need to tell people the Earth is a sphere.

When it should be common knowledge.

It is common knowledge that the Earth is claimed to be a sphere. Flat-Earthers contend otherwise but they’re not ignorant of the claim.