Happy Mew Year for Cats Day (The founders, Tom and Ruth Roy, wanted cats to have a very special New Year's celebration all to themselves)
Hatsuyume in Japan
Kaapse Klopse (Cape Town, South Africa)
National Creampuff Day and National Buffet Day in United States
National Motivation and Inspiration Day in US
National Pet Travel Safety Day in US
Pork Rind Appreciation Day in USA
Run it Up the Flagpole and See if Anyone Salutes Day (It means to float an idea to see what people think, or if they notice)
Science Fiction Day
Statehood Day (Georgia, 1788)
The first day of Blacks and Whites' Carnival, celebrated until January 7. (southern Colombia)
The first day of the Carnival of Riosucio, celebrated until January 8 every 2 years. (Riosucio)
The ninth of the Twelve Days of Christmas (Western Christianity)
The second day of New Year (a holiday in Kazakhstan, Macedonia, Mauritius, Montenegro, New Zealand, Romania, Russia, Slovenia, Switzerland, Ukraine). New Year Holiday (Albania, Scotland), if it is a Sunday, the day moves to January 3
The second day of New Year (a holiday in Kazakhstan, Macedonia, Mauritius, Montenegro, New Zealand, Romania, Russia, Slovenia, Switzerland, Ukraine): - Kaapse Klopse (Cape Town, South Africa)
In 2018 physicists at Cornell University (Paul McEuen and Itai Cohen) report the creation of "muscle" for shape-changing, cell-sized robots. With postdoctoral researcher Marc Miskin at the helm, the team has made a robot exoskeleton that can rapidly change its shape upon sensing chemical or thermal changes in its environment.
2004 – Stardust successfully flies past Comet Wild 2, collecting samples that are returned to Earth.
1999 – A brutal snowstorm smashes into the Midwestern United States, causing 14 inches (359 mm) of snow in Milwaukee, Wisconsin, and 19 inches (487 mm) in Chicago, where temperatures plunge to -13 °F (-25 °C); 68 deaths are reported.
1981 – One of the largest investigations by a British police force ends when serial killer Peter Sutcliffe, the "Yorkshire Ripper", is arrested in Sheffield, South Yorkshire.
1976 – The Gale of January 1976 begins, which results in coastal flooding around the southern North Sea coasts, resulting in at least 82 deaths and US$1.3 billion in damage.
1974 – United States President Richard Nixon signs a bill lowering the maximum U.S. speed limit to 55 MPH in order to conserve gasoline during an OPEC embargo.
1967 – Ronald Reagan sworn in as Governor of California
1963 – Vietnam War: The Viet Cong wins its first major victory.
1959 – Luna 1, the first spacecraft to reach the vicinity of the Moon and to orbit the Sun, is launched by the Soviet Union.
1949 – Luis Muñoz Marín becomes the first democratically elected Governor of Puerto Rico.
1945 – World War II: Nuremberg, Germany is severely bombed by Allied forces.
1942 – The Federal Bureau of Investigation (FBI) convicts 33 members of a German spy ring headed by Fritz Joubert Duquesne in the largest espionage case in United States history—the Duquesne Spy Ring.
1941 – World War II: German bombing severely damages the Llandaff Cathedral in Cardiff, Wales, United Kingdom.
1920 – The second Palmer Raid takes place with another 6,000 suspected communists and anarchists arrested and held without trial. These raids take place in several U.S. cities.
1900 – American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
1863 – American Civil War: The Battle of Stones River (a.k.a. Battle of Murfreesboro) resumes in central Tennessee after a day's respite, resulting in a significant Union victory.
1860 – The discovery of the planet Vulcan is announced at a meeting of the French Academy of Sciences in Paris, France.
1818 – The British Institution of Civil Engineers is founded.
1791 – Big Bottom massacre in the Ohio Country, marking the beginning of the Northwest Indian War.
1788 – Georgia becomes the fourth state to ratify the United States Constitution.
1777 – American Revolutionary War: American forces under the command of George Washington repulsed a British attack at the Battle of the Assunpink Creek near Trenton, New Jersey.
533 – Mercurius becomes Pope John II, the first pope to adopt a new name upon elevation to the papacy.
1993 – Bryson Tiller, American singer-songwriter
1988 – Mandy Harvey, Deaf Jazz Musician, Singer, Songwriter
1986 – Trombone Shorty, American trumpet player and composer
1983 – Kate Bosworth, American actress
1981 – Kirk Hinrich, American basketball player
1981 – Ryan Garko, American baseball player
1978 – Karina Smirnoff, Ukrainian-American dancer
1977 – Brian Boucher, American ice hockey player and sportscaster
1975 – Dax Shepard, American actor
1975 – Jeff Suppan, American baseball player
1971 – Lisa Harrison, American basketball player
1971 – Renée Elise Goldsberry, American actress
1971 – Taye Diggs, American actor
1970 – Eric Whitacre, American composer and conductor
1969 – Christy Turlington, American model
1969 – Robby Gordon, American race car driver
1968 – Cuba Gooding, Jr., American actor and producer
1967 – Tia Carrere, American actress
1965 – Greg Swindell, American baseball player and coach
1964 – Pernell Whitaker, American boxer
1963 – David Cone, American baseball player and sportscaster
1963 – Edgar Martínez, American baseball player
1961 – Craig James, American football player and sportscaster
1961 – Gabrielle Carteris, American actress
1961 – Robert Wexler, American lawyer and politician
1961 – Todd Haynes, American director and screenwriter
1956 – Lynda Barry, American cartoonist and author
1954 – Henry Bonilla, American broadcaster and politician
1953 – Vincent Racaniello, American virologist, author, and academic
1952 – Wendy Phillips, American actress
1951 – Alexander Pogrebinsky, Ukrainian-American painter and educator
1951 – Jim Essian, American baseball player and coach
1949 – Christopher Durang, American playwright and screenwriter
1949 – Iris Marion Young, American political scientist and academic (d. 2006)
1948 – Joyce Wadler, American journalist and author
1948 – Judith Miller, American journalist and author
1947 – Calvin Hill, American football player
1947 – David Shapiro, American poet, historian, and critic
1947 – Jack Hanna, American zoologist and author
1946 – Sonny Ruberto, American baseball player, coach, and manager (d. 2014)
1943 – Janet Akyüz Mattei, Turkish-American astronomer (d. 2004)
1942 – Dennis Hastert, American educator and politician, 59th Speaker of the United States House of Representatives
1942 – Hugh Shelton, American general
1940 – Jim Bakker, American televangelist
1938 – Dana Ulery, American computer scientist
1938 – David Bailey, English photographer and painter
1938 – Lynn Conway, American computer scientist and electrical engineer
1938 – Robert Smithson, American sculptor and photographer (d. 1973)
1936 – Roger Miller, American singer-songwriter, musician, and actor (d. 1992)
1935 – David McKee, English author and illustrator
1933 – Richard Riley, American soldier, lawyer, and politician, 6th United States Secretary of Education
1928 – Dan Rostenkowski, American Congressman (d. 2010)
1928 – Robert Goralski, American journalist and author (d. 1988)
1927 – Gino Marchetti, American football player
1925 – William J. Crowe, American admiral and diplomat, United States Ambassador to the United Kingdom (d. 2007)
1920 – Isaac Asimov, Russian-American chemist, author, and academic (d. 1992)
1918 – Beatrice Hicks, American engineer (d. 1979)
1916 – Zypora Spaisman, Polish-American midwife and actress and producer of the Yiddish stage (d. 2002)
1914 – Kenny Clarke, American drummer and composer (d. 1985)
1913 – Anna Lee, English-American actress (d. 2004)
1913 – Juanita Jackson Mitchell, American lawyer and activist (d. 1992)
1909 – Barry Goldwater, American general and politician (d. 1998)
1901 – Bob Marshall, American activist, co-founded The Wilderness Society (d. 1939)
1900 – William Haines, American actor and interior designer (d. 1973)
1898 – Sadie Tanner Mossell Alexander, American economist and lawyer (d. 1989)
1897 – Jim Londos, Greek-American wrestler (d. 1975)
1891 – Giovanni Michelucci, Italian architect and urban planner, designed the Firenze Santa Maria Novella railway station (d. 1990)
1890 – Henrik Visnapuu, Estonian-American poet and playwright (d. 1951)
1886 – Florence Lawrence, Canadian-American actress (d. 1938)
1878 – Mannathu Padmanabha Pillai, Indian activist, founded the Nair Service Society (d. 1970)
1870 – Ernst Barlach, German sculptor and playwright (d. 1938)
1870 – Tex Rickard, American boxing promoter and businessman (d. 1929)
1860 – William Corless Mills, American historian and curator (d. 1928)
1857 – M. Carey Thomas, American educator and activist (d. 1935)
1833 – Frederick A. Johnson, American banker and politician (d. 1893)
1777 – Christian Daniel Rauch, German sculptor and educator (d. 1857)
1647 – Nathaniel Bacon, English-American rebel leader (d. 1676)
2017 – Albert Brewer, American politician, Governor of Alabama (1968–1971) (b. 1928)
2016 – Frances Cress Welsing, American psychiatrist and author (b. 1935)
2015 – Tihomir Novakov, Serbian-American physicist and academic (b. 1929)
2014 – Bernard Glasser, American director and producer (b. 1924)
2014 – Jay Traynor, American singer-songwriter (b. 1943)
2014 – Michael J. Matthews, American lawyer and politician; 34th Mayor of Atlantic City (b. 1934)