We have made the change from the seventh to the first day, from Saturday to Sunday, on the authority of the one holy, catholic, apostolic church of Christ. {Bishop Seymour, Why We Keep Sunday}
Is Saturday the seventh day according to the Bible and the Ten Commandments? I answer yes. Is Sunday the first day of the week and did the Church change the seventh day -Saturday- for Sunday, the first day? I answer yes. Did Christ change the day? I answer no! Faithfully yours, J. Card. Gibbons.
{The Catholic Mirror, official publication of James Cardinal Gibbons, Archbishop of Baltimore Sept. 23, 1893}
Of course the Catholic Church claims that the change was her act
{Letter from C.F. Thomas, Chancellor of Cardinal Gibbons on October 28, 1895}