Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan.
- ISBN10 0064451097
- ISBN13 9780064451093
- Publish Date 1 June 1992 (first published 1 September 1990)
- Publish Status Active
- Publish Country US
- Publisher HarperCollins Publishers
- Imprint Collins
- Format Paperback (US Trade)
- Pages 32
- Language English