Critics of the LDS Faith claim there could not have been an apostasy because virtually all Christian denominations believe in the Bible, in Jesus, and can trace their history back to the first century AD. But Religion Today podcast host Martin Tanner explains that the core doctrines of Christianity have all dramatically changed since the first century to the point they are unrecognizable.    A few of Martin's most notable examples include:    (1) the nature of God and Jesus; (2) What it takes to be saved in God's Kingdom; (3) Whether the Canon of scriptures closed; (4) Whether baptism is necessary, what kind of baptism and at what age; and (5) the ultimate potential of mankind. These dramatic changes strongly indicate an apostasy has taken place.