Valentine's Day is celebrated on February 14th and involves giving gifts like chocolate and flowers. In medieval times, there were superstitions about eating foods to dream of your future spouse. Halloween is celebrated on October 31st and originated from harvest festivals and traditions about death. Christmas is celebrated around the world on December 25th and involves traditions like exchanging gifts and kisses under mistletoe. New Year's Eve is celebrated on December 31st and involves spending time with friends and family along with traditions about who you see first bringing luck in the new year.