The World
"For although almost all churches throughout The World celebrated the sacred mysteries (the Lord's Supper) on the Sabbath of every week, yet the Christians of Allexandria and at Rome, on account of some ancient tradition, refuse to do this." The footnote which accompanies the foregoing quotation explains the use of the word "Sabbath." It says: "That is, upon the Saturday. It should be observed, that Sunday is never called "the Sabbath' by the ancient Fathers and historians." Socrates, "Ecclestical History," Book 5, chap. 22, p. 289.