Over 800 maps going back 500 years. Quality could be dodgy though - to be honest I didn't check. I've got bookmarkitis. Quality of comments is deteriorating. Need sleep.
What a fascinating blog! It's a collection of extremely interesting maps. Definitely interesting for a discussion or stimulus item in class. I'll try to find his sources (assuming gender there again... sorry)
"David Rumsey Historical Map Collection
The over 120 historical maps in the Google Maps Rumsey Historical Maps site have been selected by David Rumsey from his collection of more than 150,000 historical maps; in addition, there are a few maps from collections with which he collaborates. (more ...)
link to this page
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Reflecting the growing scholarly interest in transnational and comparative approaches to studying the past, British Atlantic, American Frontier offers a geographical perspective on the development of British America in the seventeenth and eighteenth centuries. It covers in detail not only the American eastern seaboard, but also eastern Canada and the West Indies, as well as the trans-Atlantic links to Western Europe and West Africa.