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robert...@gmail.com> wrote in message...
> Not an expert myself, but three masted ships came in
> well beyond medieval times IIRC?
Well, from:
"How The West Grew Rich: The Economic Transformation Of The ... "
- Page 81 - Google Books Result
books.google.com/books?isbn=0465031099
Nathan Rosenberg, L. E.. Birdzell - 1987 - Business & Economics
"We do not know the name, nor even the nationality, of the inventor.
The first clear representation of a three-masted ship was on a
French medal of 1466, and we ..."
So, I'd not say "well beyond", but it was certainly
a sign that times were changing, and created great growth
in trade (development) and exploration.
(also, Thanks Eric.)