Note 846 — Chapter VIII · THE HEBREW SABBATH
Reading edition
Didache, xiv, 1. The testimony of Pliny the Younger (Epistolæ, x, 98) makes it evident that as early as the year 111 A.D. the Christians of Asia Minor were accustomed to hold religious assemblies on a fixed day (stato die), which can hardly have been other than the first day of the week.