Why did the south want and need slavery?

The south needed a slavery for low-cost Workforce from Africa and they want it for the same reason: this way the economy of the south (focused on agriculture in plantations) can increase, by playing less and earning more

after the roman empire fell, some of its cultural achievements lasted for some time and others were lost. lost achievements include architecture , coins, and literacy. however, several things remained, such as the language. people may not have spoken this language in every city, but it influenced the languages they did speak. they also created the julian , which was commonly used until the eighteenth century.