Invitation to a feast: Second or third century AD
Numerous little invitations like this one have survived from the rubbish dumps of Oxyrhynchus. The functions concerned are never very far ahead, often on the same day or the next day. In this one, Ammonius invites the recipient (who is unnamed) to a banquet in connection with the cult of Sarapis, in the dining-room of the Serapeum, on the 9th day of an unspecified month (so a month ahead at most), starting at the 9th hour.
The Oxyrhynchus Papyri vol.LXII no.4339