It upset the balance of free and slave states in the US.
Whigs opposed the war because many of them thought that going to war with mexico would encourage slavery expansion and allow the US to gain new southwest territories
Because their ruler wanted to convert Ghana's ruler to a Muslim.
The growth of the Industrial Revolution depended on the ability to transport raw materials and finished goods over long distances. There were three main types of transportation that increased during the Industrial Revolution: waterways, roads, and railroads. ... The roads also improved immensely during this time period.
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It was <span>missionaries, traders, fur trappers</span>