How did we discover that
the Earth is round?
(Ans)-About 3000 years ago people believed that
the Earth was flat. But people wondered
why ships disappeared at the horizon.
Sailors too returned from journeys and
were proof that ships did not fall off
the edge of the Earth. The simplest
explanation was: the Earth must be
round. The final proof came in the year
1522 after the expedition of Ferdinand
Magellan, who was the first to sail around
the Earth
Answers
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3
Explanation:
Background. The French Revolution began in 1789 and lasted until 1794. King Louis XVI needed more money, but had failed to raise more taxes when he had called a meeting of the Estates General. This instead turned into a protest about conditions in France.
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2
Answer:
The earliest documented mention of the spherical Earth concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers.[1][2] In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of the Earth as a physical fact and calculated the Earth's circumference. This knowledge was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages.[3][4][5][6] A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's circumnavigation (1519–1522).[7]
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