Google earth is know in 4-D adding time to its parameters so now you can see historical maps.

Currently, maps are available for:

World Globe 1790
North America 1733
United States 1833
Lewis and Clark 1814
New York 1836
San Francisco 1853
South America 1787
Buenos Aires 1892
Asia 1710
Tokyo 1680
Middle East 1861
England, Wales 1790
London 1843
Paris 1716
Africa 1787
Australia Southeast 1844
Various other maps from Map Finder
Update:
To use this new feature, expand the Featured Content -> Rumsey Historical Maps in the Layers panel.

http://earth.google.com/

Posted by Lisa - Unschooling Mom as Fun Activities for Kids, Fun Stuff, General Homeschool and Unschooling, Geography Related at 6:35 PM EST

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