I suggest removing the reference to the elephants and turtle, the RE noobs can't take a joke.
I suggested that quite a while ago and was quickly shot down. FE'ers like their turtle...
The removal of Chukwa for any reason would be anathema.
I would add: clarify that not all governments or all members of each government are in on the conspiracy.
Also perhaps,
Famous Flat Earth Advocates:
Anaximander
Thales of Miletus, "the Father of Science"
Hecataeus of Miletus
Leukippos
Democritus
Titus Lucretius Carus
Flat Earth Cosmologies:
Ionian cosmology
Hebrew cosmology
Babylonian cosmology
Norse cosmology
Sumerian cosmology
Mayan cosmology
Chinese cosmology
Hindu cosmology
Buddhist cosmology
Also, last semester I wrote a paper on another presocratic, Anaxagoras. His cosmological theory basically consisted of an initial mass, called the Urstoff (later german term, meaning super mass, or initial stuff). This then began rotating, due to "mind", and the heavy material sunk inwards; and the earth was formed.
He most likely viewed this vortex as disk shaped, therefore the world was disk shaped. In one fragment, he actually discusses the composition of the earth as being rock resting on water.