That's entirely incorrect. We're simply led to believe that the Flat Earth is the primitive shape. Before the age of space exploration every single society since the history of time believed in a Round Earth. The people of kitty hawk believed it. Columbus believed it. Magellan believed it. The people of the Middle Ages believed it. The Greeks and the Babylonians believed it. The Romans, Chinese, and Celts believed it. Ancient Egypt believed it. No society ever believed the world was flat. No person has ever set out to prove the earth as round. Historian Christine Garwood just recently published a book on the subject. She found that no society or civilization throughout the annals of time has ever, except for the Flat Earth Society in the late 19th century, once amused the idea of a Flat Earth.
In fourteen hundred and ninety-two,
Columbus sailed the ocean blue.
He took three ships with him, too,
And called aboard his faithful crew.
Mighty, strong and brave was he
As he sailed across the open sea.
Some people still thought the world was flat!
Can you even imagine that?
Does the brainwashing sound familiar?
The Round Earth is the primitive shape of the world. Not the Flat Earth.
*Just thought I'd beat Tom to the usual copy/paste.