Mahommah Gardo Baquaqua's biography was published in 1854. His report is the only known document about slave trade written by a Brazilian former slave. Mahommah was captured in Africa, sold as a slave in Brazil in the 1840s and then escaped in New York, where he studied and lived for a few years. He later moved to Canada, when his biography was published, written by Samuel Moore. The book contains interesting information about life and customs in Africa and the hard life of a slave in Brazil in the 19th century.