5
votes
1answer
109 views

How did Diego Gutiérrez know the boundaries (shape of the Americas) when he drew the 1562 Map of America

The map drawn by Diego GutiƩrrez in 1562 shows both North and South American shapes (borders). How did he (or the 15th century Europeans) know the shapes of the American continents and their geography ...
17
votes
1answer
318 views

Did anyone predict the existence of the Americas?

According to the answer of this question, Columbus was pretty much unique in his belief that the world was small enough and Asia was big enough to make sailing west to Asia possible. Everyone else ...
0
votes
1answer
98 views

In 1492, what was the shortest distance you could travel to discover the new world from the old world? [closed]

In 1492, when Christopher Columbus brought the new world to the attention of the old world. What was the extent of the known world, and what was the shortest distance someone could have travelled to ...
7
votes
5answers
339 views

Was Christopher Colombus Polish?

A Polish friend of mine stated that Colombus was of Polish heritage. Claims are made that he was a Polish immigrant to Italy, and that he came from a disgraced noble family in Poland. ...