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In the spring of 1861, the United States of America split into two hostile countries—the United States and the new Confederate States of America. The two opposing heads of state agreed about what was causing the rupture—the long...
The American Civil War
The Civil War marked a defining moment in United States history. Long simmering sectional tensions reached a critical stage in 1860–1861 when eleven slaveholding states seceded and formed the Confederate States of America. Political...
The Civil War and Reconstruction in the American West
The histories of the Civil War and of the emerging West were tangled together from their beginnings. Although the war was fought mostly in the East, the events that set it off were born of the expansion of the 1840s, and in turn the...
The Social and Intellectual Legacy of the American Revolution
"We can see with other eyes; we hear with other ears; and think with other thoughts, than those we formerly used. We are now really another people, and cannot again go back to ignorance and prejudice. The mind once enlightened cannot...
September 11, 2001
"9/11" has emerged as shorthand for the four coordinated terrorist attacks on the United States that took place on September 11, 2001. That morning, nineteen terrorists from the Islamist extremist group al Qaeda hijacked four...
World War I
War swept across Europe in the summer of 1914, igniting a global struggle that would eventually take nine million lives. World War I pitted the Allies (initially composed of Britain, France, Belgium, Serbia, and Russia, and eventually...
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