Who was the Person that Created Halloween and why?

There is no single person who "created" Halloween. It's a holiday with roots in ancient Celtic and Roman traditions, evolving over centuries.

Here's a breakdown of the influences:

* Ancient Celtic Festival of Samhain: The origins of Halloween are often traced back to the Celtic festival of Samhain, celebrated on October 31st. It marked the end of the harvest season and the beginning of winter, a time when the veil between the worlds of the living and the dead was believed to be thin.

* Roman Influence: When the Romans conquered the Celts, their own festival of Feralia (a day to honor the dead) and Pomona (the Roman goddess of fruit and trees) might have blended with Samhain, adding elements to the celebration.

* Christian Influence: When Christianity spread, they sought to replace pagan festivals with their own holidays. All Saints' Day (November 1st) was established by the church, and eventually, All Hallows' Eve (the eve of All Saints' Day) became associated with the pre-existing traditions of Samhain.

So, while no single person created Halloween, it was a blend of ancient customs, beliefs, and celebrations that gradually evolved over time.