List three factors that caused africa to become a growing source of slaves for the slave trade

Here are three factors that caused slavery to grow in Africa:

Slavery had existed in Africa for hundreds of years, especially in the Middle East. Europeans expanded this already existing slave trade.  

Tribal and other wars were a major cause of the growth of slavery in Africa. After these wars, the soldiers from the losing side were taken prisoner and sold into slavery.

Europeans needed cheap labor to work their land in the Americas.

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on this day in 1833, president andrew jackson announces that the government will no longer use the second bank of the united states, the country's national bank. a national bank had first been created by george washington and alexander hamilton in 1791 to serve as a central repository for federal fund