Initially, the denomination grew in the English-speaking world, particularly in the English Midlands and in parts of North America. In the early days after the death of John Thomas, the group could have moved in a number of directions. Doctrinal issues arose, debates took place, and statements of faith were created and amended as other issues arose. These attempts were felt necessary by many to both settle and define a doctrinal stance for the newly emerging denomination and to keep out error. As a result of these debates, several groups separated from the main body of Christadelphians, most notably the Suffolk Street fellowship (with members believing that the whole of the Bible wasn’t inspired) and the Unamended fellowship.