According to Christian sources from before the middle of the third century AD, the ancient evidence is unanimous that, although there were a few slight differences as to how weekends should be observed, one thing is certain and was uncontroversial: the main day of the week for early Christians to gather and worship was not the seventh-day Saturday Sabbath, but Sunday, which they sometimes called «the first day» or «the eighth day,» or «the Lord's Day.» The booklet also considers (1) whether...
