earth is round and i know (know not believe) that because all evidence say that, from satellite images to circumnavigation trips (trips that traveled round the world)
a list of people who are certain that earth is flat
1- Pythagoras
2- Plato
3- Aristotle
4- Me
5- every real scientist
6- all of the Pythagoreans
7- You after you read this
8- Bill nye (the science guy)
9- Elon musk
10- neil deGrasse tyson