Thursday, the 31st of December, 2015 is the 365th day in 2015 and in the 53rd calendar week.
General Events:

New Year’s Eve
December 31, 2015 in the World
New Year’s Eve or Old Year’s Night is on 31 December, 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. New Year’s Eve is observed universally on 31 December according to the year numbering of the Common Era, or A.D. Anno Domini convention, even in non-Christian nations. New Year’s Eve is also the seventh day of Christmas in western Christianity. Traditional and religious celebrations for e.g. the Chinese, Muslim and Jewish new year, which occur on different dates, are still celebrated separately in the cultures that observe them, on the appropriate dates each year.
While many people go to parties to celebrate New Year’s Eve, according to a recent survey, 62% stay at home. Seven percent do not celebrate New Year’s Eve at all, though a proportion of those may well tune in to the live tv broadcasts from the comfort of their homes.
Where is New Year’s Eve 2016?
Universal Hour of Peace Day
December 31, 2015 in the World
Created as a simple step toward a war-free world,  the Universal Hour of Peace is observed from 11:30 p.m. December 31st to 12:30 a.m.January 1st.
Conceived by Dr. Barbara Condron at the School of Metaphysics, the first Universal Hour of Peace was celebrated October 24, 1995. It coincided with the 50th anniversary of the United Nations and the autumnal equinox. It is now celebrated from 11:30 p.m. December 31st to 12:30 a. m. January 1st.
Where is Universal Hour of Peace Day?
First Night 2015
December 31, 2015 in North America
First Night is observed on December 31, 2015. First Night is a North American artistic and cultural celebration on New Year’s Eve, taking place from afternoon until midnight. Some cities have all their events during the celebration outside, but some cities have events that are hosted indoors by organizations in the city, such as churches and theaters. Since it happens on New Year’s Eve, First Night celebrations are actually held on the last night of the old year. First Night celebrates a community’s local culture, often featuring music, dance, comedy, art, fireworks and, in some cities, ice sculptures and parades.
Where is First Night?
Nationwide North America
La Guiannee 2015
December 31, 2015 in the USA
La Guiannee takes place on December 31, 2015. La Guiannée or La Guignolée is a French medieval New Year’s Eve tradition that is still practiced in two towns in the United States. The tradition related to poor people being able to ask the more wealthy for food and drink at the celebrations of winter. Customarily a troupe of traveling male singers went from door to door to entertain and ring in the new year. Hosts were expected to give them food and drink. Other sources say the young men were seeking donations for Twelfth Night. Begun as a way for the poor to be given gratuities by the rich, it also became a community social event for young men to visit with the families of young women.
Where is La Guiannee?
Nationwide USA
Historical Events on 31st December:
406 – 80,000 Vandals, Alans and Suebians cross the Rhine at Mainz, beginning an invasion of Gallia
765 – Coffin of Ho-tse Shen-hui interred in a stupa built in China
1229 – James I of Aragon the Conqueror enters Medina Mayurqa (now known as Palma, Spain) thus consummating the Christian conquest of the island of Majorca
1564 – Willem van Orange demands freedom of conscience/religion
1600 – British East India Company chartered
1695 – A window tax is imposed in England, causing many shopkeepers to brick up their windows to avoid the tax
1744 – English astronomer James Bradley announces discovery of Earth’s nutation motion (wobble)
1775 – Battle of Quebec in American Revolutionary War; Americans defeated trying to take British stronghold
1783 – Import of African slaves banned by all of the Northern US states
1857 – Queen Victoria chooses Ottawa as new capital of Canada
1859 – Dutch colony in Dutch Indies counts 4,800 slaves
1901 – In the first election under their new constitution, Cuba elects a Congress and their first president, Tomas Estrada Palma
1904 – The first New Year’s Eve celebration is held in Times Square, then known as Longacre Square, in New York, New York
1914 – As the year ends, the world finds itself engulfed in a war that would have seemed like and unimaginable nightmare only six months before
1935 – Charles Darrow patents Monopoly
1938 – Dr R N Harger’s “drunkometer”, 1st breath test, introduced in Indiana
1945 – Ratification of United Nations Charter completed
1955 – The General Motors Corporation becomes the first U.S. corporation to make over $1 billion USD in a year.
1970 – Paul McCartney files a lawsuit to disolve the Beatles
1974 – Popular Electronics displays Altair 8800 computer
1997 – More Swedes died than were born in 1997, 1st time since 1809
1999 – Control of Panama Canal reverts to Panama
1999 – Boris Yeltsin resigns as President of Russia, leaving Prime Minister Vladimir Putin as the acting President
Thank you, Lisa, I did decide to add an image of the day related to the post. 😉 you’re awesome!