President Wilson demanded that the Germans stop unannounced submarine warfare; however, he didn’t believe the U.S. should take military action against Germany. Some Americans disagreed with this nonintervention policy, including former president Theodore Roosevelt
In March 1916, a German U-boat torpedoed a French passenger ship, the Sussex, killing dozens of people, including several Americans. Afterward, the U.S. threatened to cut diplomatic ties with Germany
In response, the U.S. severed diplomatic ties with Germany on February 3. During February and March, German U-boats sank a series of U.S. merchant ships, resulting in multiple casualties.
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The invention of the steam engine impacted industry in a variety of ways, not the least of which involved the European exploration and colonization of the African continent. Transportation, in general, was improved, proving profitable to businesses which could now transport products easier and faster. Another change of importance involves the location needed for factories, which no longer needed close proximity to rivers for energy.
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The Mississippians were a native American culture that inhabited the Mississipi River Valley and surrounding areas from 9th till 16th century. Their culture was unique in that they created Mounds, that is man-made hills, many of them are still existing today.