History of Halloween

It is thought that some Halloween traditions have origins in what Celtic harvest festival?

Halloween initially preceded what Christian holiday celebrating all the saints and martyrs and celebrated on November 1st?

What pope, the third of his papal name, officially designated the above holiday in the 8th century?

What was the original Catholic name for October 31st, which eventually was shortened to Halloween?

What Catholic name collectively referred to Halloween and the two following days?

It is thought that trick-or-treating has its origins in what medieval practice, which involved asking for cakes in exchange for prayers for the dead?

The above practice is mentioned in what Shakespeare play, which is set in Italy and is often considered one of his earliest and weakest plays?

According to Catholic popular belief, on Halloween, souls journeyed from what place of purification to Heaven?

Halloween came under fire from Protestants, who objected to the above doctrine, saying it contradicted what famously Calvinist doctrine?

What man supposedly nailed his Ninety-Five Theses to the church in Wittenberg on October 31st?

What holiday, celebrated by some modern Protestants alongside or instead of Halloween, commemorates the above event?

In England after 1605, Halloween was eclipsed by what November 5 holiday that commemorates a famous plot involving gunpowder?

Halloween traditions were largely brought to the United States by immigrants from what country fleeing famines such as the Great Hunger?

In 1919, the city of Independence, Kansas replaced Halloween with what festival, in an effort to provide children and families with positive activities in place of the usual Halloween pranks?

The jack-o-lantern originated in England and Ireland in the 19th century, and initially was made of what vegetable?