When columbus reached land why did he referred to the people he encountered as indians

columbus thought that he had found india not america as no one had ever been there before

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.

cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.