ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.
Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.
In1861itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
Oneofthegreatestbreakthroughsforprofessionalwomencamein1973whenthefieldofbankingopenedupforthem.
Inliterature,caricatures讽刺画usuallycontainverbalexaggerationthroughwhichthewriterachievescomicandoftensatiric讽刺effects.
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.