Dressing up

Last updated at 14:19
People dressed up in Halloween masksAP

The Celts thought they had to protect themselves from ghosts and goblins.

If the jack-o-lantern didn't scare off the spirits, then they had their gift of food (a treat).

If that didn't work - there was another plan... a disguise.

If you wore a scary mask or disguise the ghosts hopefully wouldn't pick on you.

That is how wearing costumes started.