Tertullian seems to suggest that the majority of believers at that time favoured the Sabellian view of the oneness of God. Epiphanius (Haeres 62) about 375 AD notes that Sabellius still had many followers, both in Mesopotamia and at Rome. The second general council at Constantinople in 533 AD declared the baptism of Sabellius to be invalid, which indicates that Sabellianism was still around.