Based on the information given, it should be noted that this period was known as the Industrial Revolution.
The Industrial Revolution was simply the transition to the manufacturing sector from the agrarian economy in the country. This period was dominated by industries.
The Industrial Revolution brought about the advent of the steam-transportation, machine-industralization and the telegraph and eventually the phone.
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45 pi, or 141.3 hope this helps
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Answer:
Sandford, legal case in which the U.S. Supreme Court on March 6, 1857, ruled (7–2) that a slave (Dred Scott) who had resided in a free state and territory (where slavery was prohibited) was not thereby entitled to his freedom; that African Americans were not and could never be citizens of the United States
