The Size of the World

Regulation of Economic Activity

I am a king in a time long ago. I have heard rumors that the earth is round. I feel that it is in my interest to find out whether or not this rumor has any truth, and I understand that great progress is often achieved when trying to learn with an open mind. As such, I have summoned my wizards and set upon them two tasks. The first is to find out what the shape of the earth is. The second is to estimate the size of the earth. Here is what they found.

(Continued)