Halloween or Samhain as it was known then was supposed to be the day when demons and monsters could enter this world. They then made masks and costumes to prepare. They thought that the monster's own scariness would scare them off.
because of halloween
wear the ninja costume, ninja mask and cloud bracers and wave or dance while wearing the ninja costume, ninja mask.
It is part of his costume and it is a Mexican tradition to wear it.
Amun wore the jackel head mask
It is not a costume, just a mask. You get a mask from the scarecrow at the end of the second "Snoopy in France" scene. Wear it and knock on the farmhouse door. Use the football to knock the helmet down from the tree, avoid the Red Baron while flying, and dodge the searchlights to reach the "farmhouse" (which is actually Violet's house, where you need to wear a costume).
They used costume and mask to really get into the play. Only men would had to work at the theater not women. Men would wear mask of woman to have a femine look. Also it depended what kind of maks would they wear
Yes, Celts do wear kilts. However, Celts typically originate from Ireland. Kilts actually originated from Scotland and the Celts just took over the fashion trend.
A person could wear a Cat Woman mask to a costume party. It can also be worn for cosplay when for example visiting Comic Con or similar events. Thirdly it can be worn at home for some interesting roleplay.
Nationalism
The Celts would wear war paint to instill fear into thier enemies and repressent gods.
Just wear nothing and put on a mask.
Celts wore torcs because they believed it would help them in battle against their foes, though they also wore torcs as jewellery. They were very popular in the ancient Celtic era, and often torcs were decorated extravagantly.