http://historyexplorer.si.edu/rss?key=resourcesSmithsonian's History Explorer Resources Related To Book "Streams to the River, River to the Sea"http://historyexplorer.si.edu/resource/?key=258http://historyexplorer.si.edu/resource/?key=258<p>In the spring of 1803, Meriwether Lewis began to purchase scientific and mathematical instruments for a pending expedition into the northwestern region of North America. Among the items he purchased from Philadelphia instrument maker Thomas Whitney were three pocket compasses&nbsp;and this silver-plated pocket compass.</p>Wed, 03 Apr 2013 17:46:27 GMThttp://historyexplorer.si.edu/resource/?key=2082http://historyexplorer.si.edu/resource/?key=2082<p>This website, produced by the Missouri Historical Society, was produced to coincide with a traveling exhibition celebrating the bicentennial of the Lewis and Clark exhibition.&nbsp; Students can explore the entire journey of Lewis and Clark and the Corps of Discovery through the use of an interactive map, thematic units and an image gallery.&nbsp; Primary source documents, objects, oral histories and historical quotes tell the story of this pivotal episode in America's history from the perspectives of those involved in the expedition as well as the people they encountered.&nbsp; Resources for teachers include classroom activities written for upper elementary, middle and high school students.</p>Wed, 03 Apr 2013 17:53:36 GMT