Western Civilization II / Unit 5 WC2 0406 short lesson, about 20 seconds
Copernicus, 1543: The Sun at the Center
Captions available
The idea
Copernicus, a Polish canon, put the sun at the center in a book published as he died in fifteen forty-three, keeping the spheres and Ptolemy's calculations. The witness cites On the Revolutions of the Heavenly Spheres as the revolution's usual starting point.
In practice
Doctor, painter, reader of Greek.
Where people slip
The anchor calls him a priest; canon is the witness's and the record's word.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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