A Slave on three Continents

A Slave on Three Continents
Olaudah Equiano was born into a wealthy West African family in Nigeria. His father was a village chief. In this village they had slaves, but

as Olaudah Equiano reports, that delete they weren't treated badly, but were actually nearly equal to the masters, the biggest

differnce - typo difference

being, - no comma here!

that they were not allowed to eat together with the free-born.
At the age of eleven Equiano and his sister were alone in the village, because all the others were out, doing their daily work. While the other village members were absent,

african Languages and Continents are CAPITALIZED

slave traders captured Equiano and his sister and sold them

seperatly - typo separately

to different slave masters. Equiano was then sold several times, until he was bought by an old widow. Being a slave of the old woman, he discovered a side of slavery he had not seen before. He was washed, perfumed and took meals with the free-borns. But he was taken to the

african - here also African coast soon, and had to board a slaveship bound for

america. - Now you know, right?

Equiano was sold to a

british - and here once more - if you remember this rule, you'll cut down on your mistakes a lot!!!

navy lieutenant, who gave him a new name: Gustavus Vassa. Equiano refused to answer to his new name, so every time he did, the lieutenant slapped him. Eventually Equiano accepted it. Except for this, his new master treated him well, and Equiano learned to be a sailor and even fought for Britain in the seven-year war. Seven years later his master tried to sell him to Captain James Doran, but because Equiano had had a chance to educate himself in the seven years working as a sailor,

he wouldn't accept it, that he was being sold. - He wouldn't accept his being sold (this is very formal English) He rejected being sold (this is how I would say it)

It did not matter though, for eventually he was sold to James Doran, and then sold to a Quaker in the Carribean, who made him work on a Carribean slave ship.
He started trading glasses and other objects to

gain money - you earn or make money - you gain acceptance, knowledge of...

and was able to buy his freedom. As a free man he worked as a sailor until one day a captain decided to sell him. When Equiano asked why he wanted to sell him, he was simply hung up on the mast of the ship. They only set him ashore because a carpenter convinced the others with the argument, - no comma here! there are  all and all less commas in English

that he was obstructing the sails.
Later Equiano turned to the abolitionist cause and wrote his biography, which became a bestseller. (biography and bestseller are not written with big letters)