It has been nearly 400 years since the West African slave trade came to North America. However, today slavery is still prevalent- more than 40 million people are estimated to be trapped by various forms of modern slavery or exploitation. In Africa, slavery persists at alarming rates with more than seven people experiencing exploitation for every 1,000.
See "West African slavery lives on, 400 years after transatlantic trade began", Angela Ukomadu & Nneka Chile, Reuters, August 7, 2019