Answer:
European Plain, one of the greatest uninterrupted expanses of plain on the Earth’s surface. It sweeps from the Pyrenees Mountains on the French-Spanish border across northern Europe to the Ural Mountains in Russia. In western Europe the plain is comparatively narrow, rarely exceeding 200 miles (320 kilometres) in width, but as it stretches eastward it broadens steadily until it reaches its greatest width in western Russia, where it extends more than 2,000 miles.
Nativism, term used to refer the policy of promoting the interests of native inhabitants against those of immigrants, and the called quota laws in 1920s <em>were caused mostly by the uncertainty generated over national security during World War I,</em> which made it possible for Congress to pass the first widely restrictive immigration law in 1917 that included several important provisions that paved the way for the 1924 Act.
The 1917 Act implemented a literacy test that required immigrants over 16 years old to demonstrate basic reading comprehension in any language. However, the literacy test described above was considered not enough to prevent most potential immigrants from entering, therefore members of Congress sought a new way to restrict immigration in the 1920s. In this sense, immigration expert and Republican Senator William P. Dillingham introduced a measure to create immigration quotas. He set the percent of the total population of the foreign-born of each nationality in the United States basing on in the 1910 census.
In this way, it was limited the number of immigrants allowed to entry into the United States through a national origins quota. This put the total number of visas available each year to new immigrants at 350,000, excluding completely immigrants from Asia.
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The McCulloch v. Maryland is the case that went to the Supreme Court because the state of Maryland wanted to tax the National Bank established by the Congress. The court ruled that under the Article I, Section 8, the "Necessary and Proper" clause that the state could not tax the institution of the the federal government. This is an landmark case and its effect was that this supported the federal government over the state governments.