Answer:
The Atlantic slave trade is customarily divided into two eras, known as the First and Second Atlantic Systems. Slightly more than 3% of the enslaved people exported from Africa were traded between 1525 and 1600, and 16% in the 17th century.
Explanation:
It was because different states had their own dollars, and some places did not accept dollars from every state
Answer: The Spanish said the rafts were in the shape of the extended fingers of a hand. The large balsa logs, lashed together with henequen fiber, formed the main deck of a raft. Seawater passed freely between and over the logs making it very difficult for rafts to be swamped by heavy seas.
“era” refers to a period of time characterized by events in a chronological order.
“Period” can refer to a short interval of time or a very long interval of time.