Why do we celebrate spooky season? (Picture: Getty)

Check behind every door and look under every bed because it’s Halloween – the season for spooks, scares and surprises.

Halloween has long been a favourite holiday for kids and adults alike, with carving pumpkins and picking out costumes part of the exciting build-up to the day.

Halloween has looked pretty different over the last two years due to the ongoing coronavirus pandemic – but with no lockdown restrictions in 2022, many Brits will be keen to get involved in the festivities, such as trick or treating.

Not many people are aware that the popular day has a rather creepy origin, though.

So, why is Halloween on October 31st and why do we partake in the frightful festivities?

Here’s what you need to know.

Why do we celebrate Halloween?

Halloween was originally a pagan festival (Picture: Getty)

Back in the Celtic days, one of the most important pagan celebrations was Samhain, or the Feast of the Dead.

The festival marked the end of the harvest season and the beginning of winter or the ‘darker half’ of the year, and occurred about halfway between the autumn equinox and the winter solstice.

It is often associated with death, as Celts believed that ghosts returned to the earth on this day.

To ward the evil ghosts and spirits away, people would build huge bonfires where they would gather to burn crops, sacrifice animals, and put on costumes.

In the eighth century, Pope Gregory III made November 1 a day to honour saints and martyrs.

He made sure All Saints’ Day incorporated some of the traditions of Samhain, to keep peace with the pagans.

Samhain was renamed to All Hallows’ Eve, which eventually evolved to Halloween.

The US adopted Halloween celebrations when the Irish potato famine in 1846 led to mass migration to America.

People dressed up in costumes and knock their neighbour’s doors to ask for money or food, which, in time, transformed to modern day trick or treating.

The event grew to have massive popularity in the US, and eventually became the holiday we know today – a celebration of all the things that go bump in the night.

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