Equiano had settled in London after he had bought his freedom. This is where his major classical works were published and how he got recognized as an individual. He initially came from Africa where he was taken to Barbados, only to be sold into slavery in Virginia where he had worked on a field plantation. London is the place where he finally settled down and fought for the freedom of other African Americans. 

Barbados is the place where Equiano was held until they could transfer him to Virginia so that he could be sold into slavery.