not quite, when the catholics took over, they took pagan, druidic holidays and gave them new "christian" names (a practice commonly referred to as "inclusion" and it is why you see "churches" today with "preachers" in deck shoes and jeans, hoola girls jumping around and rock bands playing "praise" music)
druids had been celebrationg halloween long before the catholics came along, only they called it samhain
like you said, history
(on a side note, look up what Anton LaVey had to say about haloween)
