Control of the Atlantic ocean was a gateway for easy trade between other countries suck as Mexico,Africa,and possibly America. it could have also served as war territory for ships.
Answer:
I believe he means that from slavery they gradually got their way to freedom.
It was a long hard walk that they didn't deserve they were taken from their home country and sold for free labor. So he is also saying that the thing that is away from slavery that they all yearn for.
Explanation:
They were made of mud brick.
Franklin Stove, Bifocals, Lightening protection machine, and a glass harmonica