All academia used latin until quite recently. Because all books were written in latin.
Why do you think all animal species have a latin name? You think the ancient romans classified them?
Why do you think all animal species have a latin name? You think the ancient romans classified them?
Edit: Re-reading I realise you were reading that as me thinking the books weren't written in Latin, whereas I was trying to get the parent poster to think a bit beyond "the books were written in Latin" to wonder why they might be written in Latin long, long after the fall of the Roman Empire.
Newton wrote in Latin because he was, famously, an arrogent bellend. The rest of the sensible scientific community had long since swiched to living langauges.
Newton also wrote Opticks in English, perhaps because he was aiming at a more mass market audience.
"Leibniz wrote mainly in three languages: scholastic Latin, French and German."
https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz
"Many of his writings were in Latin"
Good god! This proves you have _completely_ missed the point!
The reason scientic names are in lattin, is BECAUSE it is a dead language. The scientific name can therefore never be confused with the many local/regional names for a species which will always be in a living langage.
Also your theory fails flat in the entirety of south america, some parts of africa and europe where the "local/regional" names are just… the old latin names still used today.
Thank you for the lecture!