Details about Octavius Catto

Explanation:

Octavius Valentine Catto (February 22, 1839 – October 10, 1871) was an American educator, intellectual, and civil rights activist in Philadelphia. He became principal of male students at the Institute for Colored Youth, where he had also been educated.

Died: October 10, 1871 (aged 32); Philadelphia, Pennsylvania, US

Born: February 22, 1839;

isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.