Answer:
The sentences are describing the Transatlantic slave trade.
Step-by-step explanation:
The transatlantic slave trade was the transport of slaves from West Africa across the Atlantic to America that continued during the early modern period, from the 16th century to the 1850s, when slave trade and slavery were prohibited.
The trade was part of the so-called triangle trade, where ships arrived in West Africa with European goods, which were used to buy slaves from domestic slave traders; brought slaves to America's plantations, from which they extracted export crops such as cotton and tobacco, which were then brought back to Europe.