" The first surviving Nicholas reference to which we may attribute a measure of validity dates back to the period of AD 510–515. The writer was Theodor, lector of Byzantium. His Tripartite History depends entirely on three historians of the fifth century: Socrates, Sozomen, and Theodor. Nicholas’s name appears on the tenth line of this AD 510 manuscript in Theodor’s list of participants in the famed Council of Nicaea: the 151st attendee is listed as “Nicholas of Myra of Lycia. "

― Joe L. Wheeler , Saint Nicholas