Examlex
Identify and state the historical significance of the following:
-Bear Flag revolt
Astronomical Observatory
A facility equipped with telescopes and other instruments for observing astronomical events and celestial bodies to advance knowledge of the universe.
Metric System
An international system of units based on powers of ten, commonly used around the world for scientific and everyday measurements.
National Roads
Major highways or roads that are funded and maintained by the federal government of a country, often spanning multiple states or regions.
Age of Jackson
A period in U.S. history (roughly 1829-1849) marked by the presidency of Andrew Jackson and characterized by the expansion of democracy, the emergence of the two-party system, and conflicts over states' rights.
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Q56: rugged individualism
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