Hailed as one of the great achievements of the 20th Century, the Panama Canal connects 160 countries and 1,700 ports around the world.
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Teaching with Historic Places (TwHP) uses historic places in National Parks and in the National Park Service's National Register of Historic Places to enliven history, social studies, geography, civics, and other subjects. TwHP has created a variety of products and activities that help teachers bring historic places into the classroom.
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