The placing of this basic Creed at Pentecost allows biblical
scholars to hold that it happened far too quickly for a myth
to develop about the historical record of The Resurrection.
Recent scholarship in manuscript reliability and textual
criticism, and using the historical records of Paul and his
early travels to Damascus and Jerusalem, place this portion
of scripture at about 35 AD. Having a brief 2 year gap
between "the creed" and "the written scripture" supports
the concept that initial scriptures were "an oral tradition".

From page 321, Always Growing in the Faith, by Gene Dirr.
Available at www.amazon.com.