1906, as the Adventists were unwilling to send him back to Africa and the Church of Christ turned him down as a missionary because his political views were too radical. While in Scotland in 1906, Booth became familiar with the writings of Charles Taze Russell, a prominent Christian restorationist columnist and founder of the Bible Student movement, later known as the Watch Tower Society. In late 1906, journeyed to the United States and met Russell in New York. Russell's Watch Tower Society appointed Booth as a missionary As Booth was banned from returning to Nyasaland, he went in 1907 to Cape Town, where he planned to train African evangelists to establish largely independent churches in their home areas that would be only loosely overseen by Booth and financed from America. Booth again met Elliot Kamwana, who was living in South Africa, in Cape Town in 1907, and instructed him in a mixture of Booth's sabbatarian beliefs and Watch Tower Society doctrines in preparation for Kamwana's missionary work in Nyasaland. Between 1906 and 1909, he brought at least seven trainee evangelists from northern Nyasaland. Booth instructed them for periods of four to eight months and taught them a mixture of his own sabbatarian beliefs and Watch Tower Society doctrines. Upon their return to Nyasaland, Booth's own role was limited to sending them monthly payments and bibles and other literature provided by the Watch Tower Society . Booth preached his doctrine of Africa for the Africans in public in Cape Town, which gained him some notoriety. He combined Watch Tower millennialism with an insistence on the seventh day: this ultimately led to his expulsion from the Watch Tower Society in late 1909, after Russell had tried to convince Booth to stop his seventh-day preaching. Disciples in Nyasaland Before his break with the Watch Tower Society, Booth had directed Kamwana to return to Nkhata Bay in Nyasaland where he baptised and converted about ten thousand people to the Watchtower movement, which combined Watch Tower Society teaching, sabbatarian practices and addressing his audiences' concerns about witchcraft, in a few months in late 1908 and early 1909. These activities led to his deportation. The other evangelists generally returned in 1909 and 1910, initially to set up Watchtower congregations but, after an inspection visit by an American Watch Tower Society official in 1910 considered their sabbatarian practices unacceptable, they formed an independent Seventh-day Baptist church, which