Christmas 25 December
Christmas, also referred to as Christmas Day or Christmastide, is an annual holiday celebrated on December 25 that marks and honors the birth of Jesus of Nazareth. His birth, which is the basis for the anno Domini system of dating, has been determined by modern historians as having occurred between 7 and 2 BC. The date of celebration is not thought to be Jesus' actual date of birth. It may have been chosen to coincide with the winter solstice, which the ancient Romans celebrated on December 25.
Modern customs of the holiday include gift-giving, church celebrations, and the display of various decorations—including the Christmas tree, lights, mistletoe, nativity scenes and holly. Santa Claus (also referred to as Father Christmas, although the two figures have different origins) is a popular mythological figure often associated with bringing gifts at Christmas. Santa is generally believed to be the result of a syncretization between St. Nicholas of Myra and elements from pagan Nordic and Christian mythology, and his modern appearance is believed to have originated in 19th century media. (Wikipedia)
Hanukkah
21-29 December
Hanukkah, also known as the Festival of Lights, is an eight-day Jewish holiday commemorating the rededication of the Second Temple in Jerusalem at the time of the Maccabean Revolt of the 2nd century BCE. Hanukkah is observed for eight nights, starting on the 25th day of Kislev according to the Hebrew calendar, and may occur from late November to late December on the Gregorian calendar.
The festival is observed by the kindling of the lights of a special candelabrum, the Menorah or Hanukiah, one light on each night of the holiday, progressing to eight on the final night. An extra light called a shamash, is also lit each night, and is given a distinct location, usually higher or lower than the others. The purpose of the extra light is to adhere to the prohibition, specified in the Talmud (Tracate Shabbat 21b-23a), against using the Hanukkah lights for anything other than publicizing and meditating on the Hanukkah story. (Wikipedia)
Boxing Day 26 December
Boxing Day is a public holiday in the United Kingdom, Canada, New Zealand and Australia, as well as many other members of the Commonwealth of Nations and Greece. It is based on the tradition of giving gifts to the less fortunate members of society. Contemporary Boxing Day in Canada is a "shopping holiday" associated with after Christmas sales.
It is usually celebrated on 26 December, the day after Christmas Day; however, its associated public holiday can be moved to the next weekday if 26 December is a Saturday or Sunday. The movement of Boxing Day varies between countries. (Wikipedia)
New Year's Eve
31 December
New Year's Eve is on December 31, the final day of the Gregorian year, and the day before New Year's Day. New Year's Eve is a separate observance from the observance of New Year's Day. In modern Western practice, New Year's Eve is celebrated with parties and social gatherings spanning the transition of the year at midnight.
Many cultures use fireworks and other forms of noise making in part of the celebration. Some of the cities most well-known for their celebrations include Edinburgh, Sydney, Toronto, Moscow, Tokyo, Rome, Hong Kong, London, Los Angeles, Berlin, Rio de Janeiro, Paris, and New York City. (Wikipedia)