Happy Halloween week to all that get involved!From children trick-or-treating to Halloween club nights and movie marathons filled with all our spooky favourites, Halloween is the one holiday that’s incredibly fun and low-pressure, especially compared to other popular holidays like Christmas.But, where did this tradition start and why do we still celebrate it today? Besides putting our dogs in adorable costumes, is there still an importance to this eerie holiday?It all started with a Celtic holidayAccording to the History channel, Halloween most likely started around 2,000 years ago with a Celtic festival named ‘Samhain’ in an area that is now Ireland, the United Kingdom and northern France. This was a new year celebration, with the Celts welcoming a new year on November 1st.History channel explained: “This day marked the end of summer and the harvest and the begin