the precedent of legal procedure in British courts that would later lead to successful outcomes for the plaintiffs. In these cases, deaths of the plaintiff and defendant, respectively, brought an end before court decisions. African slaves were not bought or sold in London but were brought by masters from other areas. Together with people from other nations, especially non-Christian, Africans were considered foreigners, not able to be English subjects. At the time, England had no naturalization procedure. The African slaves' legal status was unclear until 1772 and Somersett's Case, when the fugitive slave James Somersett forced a decision by the courts. Somersett had escaped, and his master, Charles Steuart, had him captured and imprisoned on board a ship, intending to ship him to Jamaica to be resold into slavery. While in London, Somersett had been baptized; three godparents issued a writ of habeas corpus. As a result, Lord Mansfield, Chief Justice of the Court of the King's Bench, had to judge whether Somersett's abduction was lawful or not under English Common Law. No legislation had ever been passed to establish slavery in England. The case received national attention, and five advocates supported the action on behalf of Somersett. In his judgement of 22 June 1772, Mansfield declared: The state of slavery is of such a nature that it is incapable of being introduced on any reasons, moral or political, but only by positive law, which preserves its force long after the reasons, occasions, and time itself from whence it was created, is erased from memory. It is so odious, that nothing can be suffered to support it, but positive law. Whatever inconveniences, therefore, may follow from a decision, I cannot say this case is allowed or approved by the law of England; and therefore the black must be discharged. Although the exact legal implications of the judgement are unclear when analysed by lawyers, the judgement was generally taken at the time to have determined that slavery did not exist under English common law and was thus prohibited in England. The decision did not apply to the British overseas territories; by then, for example, the American colonies had established slavery by positive laws. Somersett's case became a significant part of the common law of slavery in the English-speaking world and it helped launch the movement to abolish slavery. After reading about Somersett's Case, Joseph Knight, an enslaved African who had been