Be prepared to give an answer for the hope that lies within you. Here is a video about science, religion, flat earth, the globe, history, and more. Even before the time of Christopher Columbus, the question was not about the shape of the earth but rather about the size of the earth.
Marco Polo traveled too before that like over 500 years ago. Like a lot longer than that. It was like centuries before Columbus. Many people have been many places so long ago. http://AnswersInGenesis.org