My beloved boyfriend has made an observation about Jules Verne's work.

His musings were as follows:

Conversion

1 nautical league = 5.556 km = 3.45234 miles

20000 leagues = 111120 Km

The diameter of Earth = 12742 km.

(111120 - 12742)km = 98378km

The distance from Earth to the moon is 363194km at perigee and 405696km at apogee, therefore the average is 384400km.

At average;

(384400 - 98378)km = 286022km

Therefore we can conclude, that the novel “20000 leagues under the Sea” should take place about a quarter of the distance between the Earth and the Moon

Thus, it is a novel about Space Exploration.