События
Out of Africa MigrationFirst Native Americans Migrate Into AmericaChristopher Columbus "Discovers" AmericaJamestown FoundedDeclaration of IndependenceConstitutionLewis and Clark Expedition BeginsFirst Transcontinental RailroadUnited States has Become a World PowerAlaska PurchasedHawaii Becomes U.S. PossesionSpanish American WarU.S. Gains Control of Puerto Rico, Philippine Islands and Other Pacific IslandsSuez Canal OpensU.S. Takes Over Panama Canal ConstructionПериоды
DinosaursAztecsAmerican Civil WarReconstructionJim Crow Laws CreatedCattle Drives in Great PlainsHomesteading the PlainsPlains WarsMassive Immigration to America
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