Regarding the origin of the planet:The Flat Earth Society holds its origins in devout Christianity which took a strict literal interpretation of the bible. The primary purpose of the Flat Earth Society was to actively refute science and show the Bible to be correct. This was achieved through public speaking and leaflet distribution.Short, true to it's origins, answer: Because God made it.
History isn't funny, people died.
Yup. I'm reminded of the Gary Larson cartoon, where God's just finished making the (round! gosh!) earth in his workshop.