I was mostly kidding. (making a joke) But wasn't the predominant thought at the time of Galileo and Columbus determined by the Catholic Church? Isn't that what was being challenged? Or was flat earth the secular view which was overturned by another secular view?
I don't know that there is a spherical earth model (globe) presented in the Bible.
Saint Steven said:
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If the flat earth is a myth, why aren't you fine folks with a figurative view of the creation account onboard with it? - lol
At the time of Christopher Columbus it had been known that the earth was spherical for almost two thousand years. The Greek mathematician Eratosthenes actually demonstrated that the earth was spherical around 300 BC. In fact his calculations for the circumference of the earth was remarkably close to being accurate, off by only a couple hundred miles IIRC. Eratosthenes didn't originate the idea, Greek philosophers and thinkers had been talking about a spherical earth for centuries by then, but it was Eratosthenes that demonstrated it mathematically and scientifically.
As such, in Antiquity and throughout the Middle Ages anyone with a basic education would have known that the earth was spherical. Chances are that if you were an illiterate peasant who never traveled more than 10 miles from the place they were born, the question of the shape of the thing they are standing on probably didn't matter much.
So at the time of Galileo everyone already knew the earth was round. Galileo knew it, the Pope knew it, everyone knew it and agreed that it was round.
Columbus didn't set out to prove the earth was round, Columbus set out to make money by trying to find a trade route to India by sailing west across the Atlantic Ocean. Ever since the fall of Constantinople to the Ottomans in 1453, the Western European powers were cut off from the spice routes to the East. As such the Portuguese decided to find a route to India by going around Africa--and they did it. But it was a perilous journey. Columbus was convinced that the earth was a lot smaller than everyone else thought it was, so he was convinced that the trip west across the ocean to India would be quicker and easier than everyone else thought it would be.
Here's the thing, Columbus was wrong, everyone else was correct--the earth really is as big as they thought it was (remember, Eratosthenes had calculated the earth's circumference pretty near accurately millennia before this).
Columbus went to the various wealth monarchs and rulers of Europe, trying to get someone to finance a mission west to India. They kept turning him down, because they though he was stupid (he was). After pestering them many times, the monarchs of Castille finally relented and gave Columbus three of their smallest, cheapest, worst boats. Worst case scenario being that Columbus would die out in sea and they would finally be rid of him.
And had there not just happened to be a massive landmass--the Americas--between Europe and Asia, Columbus' mission would have failed. Even still, it almost did, his crew were pretty ready and set on committing mutiny, throwing Columbus overboard, and returning back to Spain. Then finally land showed up on the horizon, it was the Indies! Except not, it was the island the native Taino people called Guanahani, Columbus decided it was instead San Salvador.
And then he returned to Spain, was given way more ships, and then became a tyrant, happily murdering, raping, enslaving, and all sorts of things. To put it another way, Columbus wasn't just horrible by today's standards, Columbus was regarded as a monster by his own contemporaries who regarded him as one of the worst sorts of scum possible.
Happy Columbus Day everyone.
-CryptoLutheran