Around the 14th century, the cities of Nanjing, Calicut, Mogadishu and Venice was significant because the major center's of trading activity flourished there.
Should consider all the possible outcomes and your benefits
Answer:
Louisiana Purchase, Texas Annexation, the Mexican Cession, the Erie Canal, the Homestead Act, the transcontinental railroad and the California Gold Rush are some examples of how the US started expanding its territory in the 1800s.
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