Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Lachlin M'intosh
(1727--) Land surveyor who lead an expedition to the West against the Indians
Fourmilab Switzerland
John Walker: Named Lunar Formations
This atlas of the Lunar surface features lists all named features. Click on a name and see an image of that item, or at least an image of the Moon centered on that item.
Curated OER
Etc: Boundary Dispute Between Md and Pa, 1681 1767
A map showing the boundary dispute between the British colonies of Pennsylvania, Maryland, and Delaware between 1681 and 1767. The map shows the lands in dispute, as English King Charles II paid his debt to William Penn by issuing him a...