From the middle of the 2nd century there is a baptisimal creed as follows
I beleive in the Father Lord of all
and in jesus Christ our Saviour
and in the Holy Spirit the paraclete
and in the holy church
and in the forgiveness of sins
Doesnt this look like the nicean creed? in fact it is one of many creeds throughout christindom in the early centuries all haveing the same pattern. The creed of Caesarea which predated the nicean creed and was a basis for it in the forth century. Barry