Made the Opinion poll .Opinion are usually made to represent the opinions of a population by conducting a muliple of questions and then extrapolating generalities in ratio or within confidence intervals.
Scholars have argued that the slave trade increased the incidence of warfare in West Africa as various states deliberately sought captives whom they could exchange for desired goods from Europe. Osei Bonsu was the Asante King who noted that humanitarian reasons influenced the people who opposed slave trade and would not agree to this view of some scholars. He argued that he had never enslaved people except through war pointing out that<em> wars were not fought to acquire slaves, but for other reasons. Osei Bonsu would see it necessary or him to sell war captives lest they rise against him</em>. Osei Bonsu wondered what he could trade with if he could not trade slaves in exchange or European manufactured goods.
The raid on Harper's Ferry was an intent by John Brown, who was an abolitionist, to initiate a slave revolt in 1859 by taking control on the federal arsenal located in Harper's Ferry, Virginia.
The two groups that were outside the arsenal were:
- <em>John Brown's "group of 22"</em>. This group of men was supposed to be supported abolitionists Harriet Tubman and Frederick Douglass. However, none of them showed up in the scene, as Tubman fell ill and Douglass was doubtful of a victory.
- <em>A group of US Marines</em> led by Colonel Robert E. Lee.
The attempt was unsuccessful, resulting in the defeat of Brown's group by the US Marines.
<span>The invention of new communications technology.
</span><span>Improvements to shipping technology
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