Serapia
serapia sarapia roman imperial religious festival devoted grecoegyptian god serapis found official holiday april late calendar filocalus ad farmer almanac menologia rustica dating first half st century day sacrum rite serapis along isi pharia isi lighthouse pharos alexandria serapis incorporated imperial cult rome importance city god alexandria epithet dominus master lord magnus great invictus invincible cultivated deity success victory conjunction solhelios jupiterzeus neptune papyrus document celebration egyptian serapia along nile late one record payment performing ceremony oxyrhynchus late rd century including comedian two homerists dancer athlete dogheaded one kynopou may priest wearing mask anubis procession egyptian deity rome seem included masked participant among greek roman serapis sometimes identified underworld ruler pluto anubis cerberus addition payment festival organizer kynopou receive welcome gift xenia people along processional route perhaps obtain reciprocal hospitality afterlife egyptian observer presence anubis would affirmed connection hellenistic serapis traditional egyptian god osiris isidis navigium sailing festival isi march pelusia festival isi birth harpocrates march