 Akitoye, the 11th Oba of Lagos, is famous for having used British involvement to regain his rule in return for suppressing slavery among the Yoruba people of Lagos in 1851.Anti-slavery treaties were signed with over 50 African rulers.In 1839, the world's oldest international human rights organization, Anti-Slavery International, was formed in Britain by Joseph Sturge, which worked to outlaw slavery in other countries.