In 1999, Vincent Carretta published findings of two records that questioned Equiano's birthplace in Africa. Carretta found Equiano's baptismal record dated 9 February 1759 from St Margaret's Church in Westminster, London, where Equiano was recorded as "Gustavus Vassa, a Black born in Carolina, 12 years old", and a naval muster roll from 1773 where Equiano likewise identified his birthplace as "South Carolina". These documents were enough for Carretta to believe Equiano's claims about his early life were "probably fictitious". Aside from contradicting Equiano's account directly, these records suggested that, even if Equiano were born in Africa, he would have been at most seven or eight years old when he was sold into slavery (given that he must have been purchased by Michael Henry Pascal in Virginia no later than December 1754). This made Carretta doubt the reliability of Equiano's first-hand descriptions of his home "country" and "countrymen". Carretta believes his findings indicate Equiano had borrowed his account of Africa from others, and said the timing of the publication was not an accident. Carretta noted "the revelation that Gustavus Vassa was a native-born Igbo originally named Olaudah Equiano appears to have evolved during 1788 in response to the needs of the abolitionist movement."