US history 1887-2008 By CB240103 Period: 1776 to 1860 Early American history Period: 1860 to 1877 Civil war and reconstruction Period: 1877 to 1900 The glided age Period: 1890 to 1920 The progressive era Period: 1898 to 1910 Imperialism Period: 1914 to 1918 World war 1