00:00 Halloween originated from the Catholic Holy Day of All Saints Day and All Hallows Eve, and it is a celebration that includes dressing up and asking for candy.

01:49 Halloween originated from the Celtic Pagan Festival of Sawin and was later adapted to the Christian celebration of All Saints Day, with many of the traditions and customs remaining and being brought to the Americas by early colonists.

03:19 The tradition of wearing costumes on Halloween originated from the practice of mumming and guising in the 16th century, where people would dress up and go door-to-door reciting Bible verses, singing hymns, or performing short plays in exchange for food, and the wide-scale trick-or-treating we know today in the US didn't become established until after World War II, popularized by radio and TV shows.

04:44 The tradition of dressing up in costumes and trick-or-treating has spread outside of the United States, often facing resistance, while the use of carved pumpkins, known as Jack-O-Lanterns, originated in Ireland and was popularized by the story of the headless horseman in The Legend of Sleepy Hollow.

06:14 A quarter of all candy produced in the United States is sold around Halloween, as trick-or-treating became popular in the 40s and 50s and candy manufacturers took it upon themselves to promote what kids really wanted: candy, not apples or popcorn balls.

07:45 Witches and bats are modern adaptations of older beliefs that got linked to Halloween due to the holiday's association with death and the occult, with the image of witches flying on brooms dating back to the mid-15th century and the association of black hats with witches coming from L. Frank Baum's book The Wizard of Oz, while bats are associated with Halloween because they would often fly away from the bonfires lit during the Sawan festival.

09:14 Candy corn, a Halloween staple, originated in the 1880s and was initially available year-round, but became associated with Halloween due to its harvest connotations and the availability of better candy options in the second half of the 20th century.