1795-1849 1824-1860 19thcentury 973 biography criticism democratization dictionaries extensiontotheterritories filibusters filibusterwar(nicaragua:1855-1860) history internationalrelations missouricompromise narrative nicaragua politicalaspects politicsandgovernment polk presidents relations representativegovernmentandrepresentation slavery sources states'rights(americanpolitics) territorialexpansion unitedstates walker william