[Alex Murphy]

...a 1,500-year-old papyrus has been identified as one of the world’s earliest surviving Christian charms. The ‘remarkable’ document contains some of the earliest documented references to The Last Supper and sheds new light on early Christian practices, experts say.

I can think of four additional references that are even older.

[Verginius Rufus]

The oldest manuscripts of the New Testament are from the fourth and fifth century, older than this “discovery.” For the accounts of the Last Supper in Matthew and Luke, apparently at least parts are preserved on papyri that date to the third century.