January 23 is the 23rd day of the year. There are 342 days left.

Today's number is 23

23 is
The 9th prime and the sum of 3 consecutive primes; 5, 7 and 11
The atomic number of Vanadium
The number of chromosomes in a human sperm or ova (haploid)
The number of times that Julius Caesar was stabbed.

The 23 enigma is the belief that most incidents and accidents, events and happenstances, and stuff, are somehow directly connected to the number 23. Robert Anton Wilson, William S. Burroughs, The Illuminatus! Trilogy (fnord), Principia discordia, etc. Like this open thread, for example.

Title 23 of the US Code is Highways

The 23rd Amendment grants the citizens of DC the right to vote in presidential elections. DC is granted the lesser of the number of electors it would have if it were a state, or the number of electors allowed to the least populous state. Currently, that number is 3, either way it is computed.

23 BCE was the "Year of the Consulship of Augustus and Varro".
Herod the Great allegedly built a palace in Jerusalem.

23 CE was the "Year of the Consulship of Pollio and Vetus"
Tthe Greek geographer Strabo finally published his "Geography", a work describing the world known to the Romans and Greeks in Emperor Augustus' day. No similar works of similar antiquity exist.
Pliny the Elder, a Roman scientist and writer, was born.
Liu Xuan, a descendant of the Han Dynasty overthrew Wang Mang and ended the Xin Dynasty. Restored the Han Dynasty, he did.

On this day in:

1368 -- The Ming dynasty began with the coronation of Zhu Yuanzhang
1556 -- The Shaanxi earthquake may have may have killed as many as 830,000.
1795 -- The French cavalry beat the Dutch Navy, capturing 14 Dutch ships by attacking across a frozen bay.
1846 -- Slavery was abolished in Tunisia
1849 -- Elizabeth Blackwell received her MD and became the first female doctor in the US
1870 -- In the Marias Massacre (in Montana), U.S. cavalry killed 173 Native Americans, mostly women and children
1879 -- The Battle of Rorke's Drift ended
1912 -- The International Opium Convention was signed
1950 -- The Knesset illegally declared that Jerusalem was the capital of Israel
1960 -- The bathyscaphe Trieste set a new depth record of 10,911 metres
1964 -- The 24th Amendment outlawed poll taxes
1973 -- Nixon announces peace in Vietnam.
1986 -- The Rock and Roll Hall of Fame inducted its first members
1997 -- Madeleine Albright became the US' first female Secretary of State.
1998 -- Netscape announced Mozilla
2003 -- The last signal was received from Pioneer 10 but Pioneer Chicken keeps going

Born this day in:

1752 -- Muzio Clementi, pianist, composer, and conductor
1783 -- Stendhal, author who saw life in terms of red and black
1832 -- Edouard Manet, painter
1840 -- Ernst Abbe, physicist and engineer
1862 -- David Hilbert, mathematician and academic
1872 -- Paul Langevin, physicist and academic antifascist, commie and Marie Curie's lover
1897 -- Margarete Schutte-Lihotzky, architect, communist, & kitchen designer
1898 -- Randolph Scott, Ahhhhh ...
1907 -- Hideki Yukawa, physicist, Japan's first Nobel laureate
1910 -- Django Reinhardt, guitarist and composer
1918 -- Gertrude B. Elion, biochemist and pharmacologist, Nobel Prize winner
1918 -- Florence Rush, social worker and theorist, attacked some wrongheaded Freudian victim blaming.
1925 -- Marty Paich, pianist, composer, producer, and conductor
1933 -- Chita Rivera, actress, singer, and dancer
1943 -- Gary Burton, vibraphone player and composer
1950 -- Bill Cunningham, bass player and keyboard player
1950 -- John Greaves, bass player and songwriter
1950 -- Luis Alberto Spinetta, singer, songwriter, guitarist, and poet
1964 -- Jonatha Brooke, singer, songwriter and guitarist
1968 -- Taro Hakase, violinist and composer

Died this day in:

1803 -- Arthur Guinness, Irish brewer, founded Guinness. Truly a stout fellow.
1883 -- Gustave Dore, engraver and illustrator
1931 -- Anna Pavlova, ballerina
1973 -- Kid Ory, trombonist, composer, and bandleader
1976 -- Paul Robeson, actor, singer, and activist
1978 -- Terry Kath, guitarist and songwriter
1989 -- Salvador Dali, painter and sculptor
1990 -- Allen Collins, guitarist and songwriter, southren boy
1993 -- Thomas A. Dorsey, singer, songwriter and pianist
1993 -- Keith Laumer, author, flyboy, and diplomat
1997 -- Richard Berry, singer & songwriter
1999 -- Lincoln Thompson, singer & songwriter
2005 -- Johnny Carson, replaced Jack Paar
2007 -- E. Howard Hunt, professional low-life SOB

Holidays, Holy Days, Festivals, Feast Days and such:
Bounty Day (Pitcairn Islands)

So, for music 
Muzio Clementi
Django Reinhardt
Marty Paich
Chita Rivera
Gary Burton
Bill Cunningham
John Greaves
Luis Alberto Spinetta
Jonatha Brooke
Taro Hakase
Kid Ory
Paul Robeson
Terry Kath
Allen Collins
Thomas A. Dorsey
Richard Berry
Lincoln Thompson
 - 

Django Reinhardt

Marty Paich

Chita Rivera

Gary Burton

Bill Cunningham

John Greaves

Luis Alberto Spinetta

Jonatha Brooke

Taro Hakase

Kid Ory

Paul Robeson

Terry Kath

Thomas A. Dorsey

Richard Berry

Lincoln Thompson

OK, what's on your minds?

Bonus: