The evolving civil rights movement of the 1950s, 1960s, and 1970s revolutionized the consciousness of young people ac
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Grade Range:
K-12
Resource Type(s):
Artifacts, Primary Sources
Date Posted:
7/21/2008
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 and this silver