We look into the evidence for machining and advanced methods of shaping and polishing stone, as well as the varying levels of technology found on ancient sites and artifacts. I spend a bit of time ...

Ancient Lost Worlds and Hidden History. On location videos made by author and adventurer Brien Foerster exploring Peru, Bolivia, Egypt, Hawaii, Easter Island and other exotic places. With special ...

In this lesson, students investigate a historical mystery—the 1865 explosion of the steamship Sultana—by analyzing a collection of primary and secondary source documents. They work in cooperative ...