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-------- Original Message --------
Subject: Re: Latitude
Date: Fri, 15 Jun 2012 17:18:46 -0400
From: Joel Kovarsky <[log in to unmask]>
To: Maps, Air Photo, GIS Forum - Map Librarianship
<[log in to unmask]>
The principle of latitude was certainly known to the ancient Greeks,
including Hipparchus, Eratosthenes, and Ptolemy. You did not see
graticules on portolan charts, so maybe the very early 15th century
(before the inception of printed maps), as a resurgence of interest in
/Geographia /occurred:
http://heterogeneities.net/publications/Law1986MethodsOfLongDistanceControl.pdf
. Maybe someone else can be more precise.
Joel Kovarsky
On 6/15/2012 3:18 PM, Angie Cope, American Geographical Society Library,
UW Milwaukee wrote:
> -------- Original Message --------
> Subject: Latitude
> Date: Fri, 15 Jun 2012 11:56:33 -0700
> From: Carlos Diaz <[log in to unmask]>
> To: [log in to unmask]
>
>
>
> I have a patron who is asking:
> --When did latitude start showing up on maps and charts?
>
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