If one were asked to define what is the main characteristic of the church in the 1900s, what is that one feature of her life in this century which sets the church apart from the church in other centuries, that unique trait which stands out from all others as definitive of the church in modern times, most people would probably say: ecumenism. The church has, in this century, been especially busy with merger, been occupying her time and efforts in the cause of unity, and has stressed this aspect of the church’s life more than any other.