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Vasco da Gama led the first around-the-world expedition, but NOT to prove that the world was round. That had already been widely known for well over 1,500 years. The ancient Greeks had even very accurately calculated the exact size of planet Earth and they even had worked out (to the exact number of degrees) the slight tilt that the axis of our planet has.

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Q: Who led a three-year expedition that proved the earth was round?
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Related questions

What did magellans expedition accomplish?

He proved that the world was in fact round, not flat. He aldo proved that it was larger than everyone thought it was.


Who led the expedition that proved that the world is round?

It was well before man explored that it was a known fact that the earth was round. The Ancient Greeks had that figured out thousands of years before the first ship hit the water.


Who found that the earth is round?

Galileo Galilee proved that the earth is round by earths shadow on the moon.


Who led A three year expedition that proved the earth is round?

The Chinese admiral, Zheng He, in 1421. Ancient maps produced by his captains appear to have found their way to Portugal and later to Spain.


What was most important about Ferdinand Magellan's?

It proved the earth was round.


What important fact did Ernest Shackleton's expeditions prove?

Ernest Shackleton proved on his third expedition that the world was round.


What was most important about Ferdinand Magellan's voyage?

It proved the earth was round.


How did the Guptas figured out the earth was round?

The Gupta Empire astronomers proved the earth was round by studying the moon during a lunar eclipse. They noticed that the earths shadow on the moon was round, meaning that the earth itself was round.


What beliefs about earth and heavens were proved by the discoveries. Of Aristarchus and Eratosthenes?

that the earth was not flat nor square but it was round


What beliefs about earth and the heavens were proved by the discoveries of Aristarchus and Eratosthenes?

that the earth was not flat nor square but it was round


What beliefs about earth and the heaven were proved by the discoveries of aristarchus eratosthenes?

that the earth was not flat nor square but it was round


What did magellin prove?

Magellan was the first explorer to organize an expedition which successfully circumnavigated the Earth. Despite existing mathematics and science that stated the Earth was round, Magellan's expedition conclusively proved this fact by traveling around it themselves. (Magellan himself did not survive the entire journey, as he was killed in a battle against Filipino natives on April 27, 1521).