Why We Shouldn't Celebrate Halloween?

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Across
  1. 5. what name is halloween shorted to?
  2. 7. where did halloween begin?
  3. 8. where else did halloween begin?
Down
  1. 1. where else did halloween begin?
  2. 2. what month is all hallows eve celebrated on?
  3. 3. how did trick o treat begin as?
  4. 4. what was the Celtic celebration of the new year?
  5. 6. what did the scared humans offer to escape the persecution of the demons?