It didn't matter where the slaves came from. The tribal leaders in Africa just had many to sell for one reason or another. The demand came from areas when cheap labor was needed. In the US, it was mostly in the areas growing cotton or sugar cane. Remember this was before many machines were invented. When that happened the demand grew less. If one person could plant and then harvest a large farm alone, what need was there for 20-40 people to do the work.
Short answer: Invention of the cotton gin (invented by Eli Whitney).
Long answer/explanation: Slaves did a lot of cotton picking in the South. They had to pick out the cotton seeds out of the cotton lint by hand. But when the cotton gin was invented by Eli Whitney, it made things a whole lot easier. The cotton gin would take the seeds out for you, all you had to do was spin a handle. Slaves could normally pick one pound of cotton a day by hand, but with the cotton gin could generate up to fifty pounds of cotton a day.
When plantation owners saw this, they took advantage of it. They bought cotton gins and were able to afford more slaves because of how fast the cotton was coming in. This is what increased slaves by a huge amount.
The cotton kingdom grew so they needed more people to work in the cotton fields.
They discovered waffles.
Because slave trade increased in popularity.
I don't believe most Africans were even aware of WW1.
Large families and more immigrants came to the colonies.
Plantation owners wanted to increase their Status by having a large numbers of slaves
Enslaved Africans were brought to the southern colonies to work on plantations due to a demand for labor in industries such as tobacco, rice, and indigo production. Enslaving Africans was seen as a way to meet this demand for labor and increase the profitability of these industries.
The cotton kingdom grew so they needed more people to work in the cotton fields.
The total population of enslaved people in colonies from 1600 to 1850 is estimated to be around 12 million to 15 million individuals. This period marked a significant increase in the transatlantic slave trade and the forced migration of Africans to work in the Americas.
They discovered waffles.
In 1600, there were relatively few enslaved Africans in the southern colonies of what would become the United States. The number of slaves would increase significantly as the transatlantic slave trade grew over the following centuries.
Because slave trade increased in popularity.
they helped increase the amount of food and crops being produced and this helped the trade increase for the colonies and bring more income/profit to the colonies
The English colonists gradually turned to the use of African after efforts to meet their labor needs with enslaved Native Americans and indentured servants failed.
The main central idea found in primary sources from colonists and enslaved Africans is freedom. Even though freedom is the primary notion of the United States, enslaving Africans are contrary to it. Another idea that rose was the increase of plantations in South America.
Southern planters began using enslaved Africans to work in the fields because they needed a large, inexpensive labor force to expand their agriculture operations and increase profits. Enslaved Africans were seen as a cheap and readily available source of labor, and the institution of slavery provided a way to control and exploit their labor while maintaining the planters' economic interests.
West Africa was also home to many enslaved Africans brought to the americans The trends sharan salve trade contributed to the power of Ghana,Mali,and Songhai
cause slaves are good