Answer:
The Ice-Free Corridor hypothesis (or IFC) has been a reasonable theory for how human colonization of the American continents occurred since at least the 1930s. ... In 1840, Louis Agassiz put forward his theory that the continents had been covered by glacial ice at several points in our ancient history
Explanation:
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The Battle of Antietam was the bloodiest one-day battle of the Civil War, with over 25,000 casualties total. It was a Union victory, which raised the confidence of Union troops. After a long winning streak, the Confederate troops lost and were forced back.
Answer:
The root causes of the conflict can be traced to the crisis of 14th-century Europe. The outbreak of war was motivated by a gradual rise in tension between the kings of France and England over territory; the official pretext was the question that arose because of the interruption of the direct male line of the Capetian dynasty.
Pro-British Americans were angered that the US government agreed to trade with Britain. Pro-French Americans were angered that the US government agreed to trade with France.
