Slavery and abolition in the US help?

I have to give a report summarizing this book about slavery, it's called Slavery and Abolition in American History by Linda Jacobs Altman.

Please tell me if it's good (even if you haven't read the book). Like if it sounds ok, if there are any errors, etc. Thanks!



--Slavery had always been a part of history, but in the 1400s it started to change the world.

In the early 1400s, Portuguese explorers went to Africa and found slaves. They brought the slaves back to Portuguese islands and sold them as property. The rest of the world quickly became interested in "The Atlantic Slave Trade".

The slaves were considered to be merchandise. They were kidnapped from their homes and put on a cramped ship, where many of them died. The ones that survived were sold for large profits. Many were separated from their families. On the plantations, they worked for 16 hours a day, and were punished for disobedience, usually in the manner of whipping.

After 1680, slavery became popular in the colonies. By the eighteenth century, most people that came to the Americas were African slaves. There were slaves in all of the thirteen colonies. Slavery was less common in the North than in the South. The Northern colonies had more industry than farming, as opposed to the Southern where they had large plantations and need of a huge and cheap workforce. The Southern slaver-holders claimed that slavery was a positive good.Slavery and abolition in the US help?
The portuguese didn't brought the african slaves to "islands", they brought them to one of the main ports in Portugal, the city if Lagos.



And african slavery was already thousands of years old, just before the portuguese who controled african slavery were the arabs in the east african coast.



And Portugal might have started african slavery in Europe but it was also the first country in the world to ban it, in 1756.

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