The majority of scholars believe that Halloween can be traced back to the ancient religion
of the Celts. There is evidence, however, that other far older and
unconnected cultures (the Egyptian and pre-Spanish Mexican) celebrated
this as the “festival of the dead”. Most of our modern traditions
come from the festival as the druids, Celtic priests, performed it. For
them there were four major holy days (called “Fire Festivals”): Samhain,
Oimelc, Beltane & Lughnasadh (in one set of Irish-based modern
spellings). Samhain, at the end of the summer (Nov. 1) became what we
call “Halloween.”