In Western Europe, the war was largely a stalemate as a result of extensive trench warfare that gave the defenders a massive advantage during battles. In Russia, however, the monarchy was overthrown by rebels, who then negotiated peace and surrendered large chunks of land to the Germans, allowing them to concentrate all their troops and resources to the Western Front.
They were used as slave labourers
<span>It is thought to have been the reason why Polk won the election over Clay. Polk was a slave owner and was in favor of annexing Texas which was a slave state already, thus growing the slavery movement. Clay was initially against annexing Texas when Van Buren was initially running against him. When Polk ended up winning the nomination for the Democratic party over Van Buren, Clay then changed his mind on the topic of the annexation to support it, as Polk had. This made him appear wishy-washy and led to be Polk becoming President.</span>
The Progressive Era Conservation Movement was a social movement taking place during the late 19th and 20th century that saw a resurgence in environmental conservation following the drastic exploitation of natural resources in the United States. Supporters of this movement included President Theodore Roosevelt who created state entities to preserve natural resources and lands.
The Hetch-Hetchy debate discussed the incorporation of water resources into San Fransisco's city planning, specifically the damming of an important river in Yosemite in order to grow the new city or the conservation of wild lands. Congress debated the issue, pitting conservationists and preservationists against one another, eventually, conservationists were victorious seeing a dam built in the Hetch Hetchy Valley.
In Dred Scott v. Sandford (argued 1856 -- decided 1857), the Supreme Court ruled that Americans of African descent, whether free or slave, were not American citizens and could not sue in federal court. The Court also ruled that Congress lacked power to ban slavery in the U.S. territories.
