Of course the Earth was never flat, you're probably thinking.  But my title is overly brief, as titles often are.  My real meaning is, "People never thought the Earth was flat."  But that's not true, now you say.  I will grant that people once did think the earth was 2-D, namely most Tom, Dick, and Harrys prior to Parmenides.  So my title is not only overshort, it's undercorrect.  In spite of numerous mistakes in the titling of this program, I hope you enjoy it.