Halloween was introduced in Mainland Europe not before a few years ago, probably in order to give retail revenue a  boost, similar to the introduction of Christmas in China.

So many, all over non English-speaking Europe might not know, where the word Halloween originates from.

The term Halloween, in its actual meaning, is supposed to announce the beginnig of winter, Nov 1st being All Saints’ Day or All Hallows’ Day, Okt. 31st, therefore, being All Hallows’ Eve shortened to Halloween, i.e. the evening before All Hallows’ Day.