Yay halloween?

Actually it's from the Irish Celts.

QUOTE:
Halloween's origins date back to the ancient Celtic festival of Samhain (pronounced sow-in). The Celts, who lived 2,000 years ago in the area that is now Ireland, the United Kingdom and northern France, celebrated their new year on November 1. This day marked the end of summer and the harvest and the beginning of the dark, cold winter, a time of year that was often associated with human death. Celts believed that on the night before the new year, the boundary between the worlds of the living and the dead became blurred. On the night of October 31 they celebrated Samhain, when it was believed that the ghosts of the dead returned to earth. In addition to causing trouble and damaging crops, Celts thought that the presence of the otherworldly spirits made it easier for the Druids, or Celtic priests, to make predictions about the future. For a people entirely dependent on the volatile natural world, these prophecies were an important source of comfort and direction during the long, dark winter.

Halloween history

the word Zaduszki originates from dzień zaduszny which can be translated as the day of the prayer for souls
and Dušičky translates to All Souls Day so ye they are all the same :)

Yeah, not completely free. We have Halloween in schools with our english language teachers, and kids are coming to houses too, but, when I was in 4-6 grade the teachers said something like "if we hear that you are walking from house to house you will have consequences from it, because it's not our tradition". In my life kids were knocking to my house just two times, and older people were not happy from it. They know our history, were fighting for our traditions, so they don't want to loose it.