Answer:
Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders. ... From then on, no Roman emperor would ever again rule from a post in Italy, leading many to cite 476 as the year the Western Empire suffered its deathblow.
Answer:
the proggressive movement led it to do it
Explanation:
He called the imaginary barrier the "Iron Curtain". He used this image to oppose the Soviet union expansion, and keep in communism in check.
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The difference lies in interpreting the two sides of the conflict. McPherson saw the war as the war between the evil South and the good North. He was focused on the abolition of slavery and their integration into the society as free people. Horwitz on the other hand saw South not as evil but as a faction which went to war to protect its economic interests.