Who founded the earth is round?

Answer 1

The idea of a round Earth appears to have originated in Greek Philosophy. Aristotle provided the first evidence of a round Earth, noting that explorers traveling south saw southern constellations rise higher above the horizon and that Earth cast a round shadow on the moon. Eratosthenes used the angle of sunlight at different latitudes to estimate Earth's circumference with surprising accuracy.

Answer 2

The ancient Greek philosopher Pythagoras is often credited with discovering that the Earth is round in the 6th century BC. However, the idea of a round Earth was also proposed by other ancient cultures such as the Egyptians and Babylonians.