October 10 is the 283rd day of the year. There are 82 days left.

Today's number is 10

10 is the base of the decimal number system. Since many others such as 12 make more sense, we must assume that it is because humans have 10 manual digits.

10 years is a decade, well, 10 anything, sort of, though "decad" also means a set or group of ten
To reduce something by 10 is to decimate.
10 is the sum of the first 4 integers
That might be why bowling is also known as ten pins
10 is the sum of the first 3 primes (2,3,& 5)
A polygon with 10 sides is a decagon
A crustacean with 10 legs is a decapod
A person with 10 or more vices is decadent (needs a citation)
10 is neon
10 is also Capricorn which is also a sea goat
A specific selection of 10 track & field events is a decathalon
10 yards is a first down in US football
The end zones in US football are 10 yards deep
The Rim of the hoop in roundball is 10 feet high
The highest score possible is often 10
Bo Derek may or may not have been a perfect 10.
10 High is a barely potable, but inexpensive, whiskey
The "10-Code", good buddy, is numerical shorthand used by cops, emergency responders, truckers and CW artists
Tennis has nothing to do with the numeral 10.

10 Years after is both a book and a band

10 cents (US) is a "dime", as in
Just One Thin Dime, one Tenth of a Dollar:

At some point it appears that there were Ten Thousand Maniacs

Title 10 of the US Code is ARMED FORCES

10 BCE was the Year of the Consulship of Maximus and Antonius
Claudius, the future emperor, of PBS fame, was born

10 CE was the Year of the Consulship of Dolabella and Silanus
Illyria was split into Pannonia and Dalmatia.
Ovid completed Tristia and Epistulae ex Ponto
Wang Mang outlawed the private purchase and use of crossbows
Hero of Alexandria was born

On this day in:
0680 -- The Battle of Karbala was fought
0732 -- The Battle of Tours was fought
1582 -- Nothing at all happened in Italy, Poland, Portugal and Spain; the date does not exist there
1868 -- Carlos Cespedes proclaimed the Grito de Yara, starting the Cuban war of Independence from Spain (aka 10 Years War)
1897 -- Felix Hoffmann discovered an improved way to make aspirin
1903 -- Emmeline Pankhurst founded the Women's Social and Political Union
1911 -- The Wuchang Uprising, which led to the founding of the Republic of China, uprose
1913 -- Construction of the Panama Canal ended with a bang when they blew up the Gamboa Dike
1938 -- The Munich Agreement ceded the Sudetenland to Germany.
1963 -- The Partial Nuclear Test Ban Treaty went into effect, partially, one assumes
1973 -- Spiro T. Agnew resigned as US Vice President. No big loss.
1980 -- El Salvador's FMLN was founded
2010 -- The Netherlands Antilles were dissolved as a nation, eliminating some YUUUGE US Corporate tax avoidance schemes.

Born this day in:
1684 -- Jean-Antoine Watteau, painter
1731 -- Henry Cavendish, chemist, physicist, and philosopher
1813 -- Giuseppe Verdi, composer
1877 -- William Morris, founder of Morris Motors
1898 -- Lilly Dache, clothes designer
1914 -- Ivory Joe Hunter, singer, songwriter and pianist
1915 -- Harry Edison, A trumpet player and composer
1917 -- Thelonious Monk, pianist and composer
1923 -- Louis Gottlieb, singer, comic, musicologist and bass player
1924 -- Ed Wood, actor, director, producer, screenwriter, had a plan from outer space
1926 -- Oscar Brown, singer, songwriter, playwright, activist and actor
1930 -- Harold Pinter, actor, director, screenwriter, activist and playwright
1935 -- Khalil al-Wazir, founder of Fatah
1941 -- Peter Coyote, actor, director, and screenwriter, member of the Diggers and the S.F., Mime Troupe
1941 -- Ken Saro-Wiwa, Ogoni author and activist murdered by the Nigerian government as a favor to Royal Dutch Shell.
1946 -- John Prine, singer, songwriter and guitarist
1954 -- David Lee Roth, singer, songwriter and producer
1958 -- Tanya Tucker, singer, songwriter and guitarist
1979 -- Mya, singer, songwriter, producer, dancer, and actress

Died this day in:
0019 -- Germanicus, Roman general
0680 -- Husayn ibn Ali, Islamic religious leader, Muhammad's grandson
1659 -- Abel Tasman, merchant and explorer
1800 -- Gabriel Prosser, caught planning a slave rebellion in the US and hanged for it.
1837 -- Charles Fourier, philosopher and academic
1872 -- William H. Seward, lawyer and politician, committed Seward's folly.
1911 -- Jack Daniel, businessman, founder of Jack Daniel's
1913 -- Adolphus Busch, co-founder of Anheuser-Busch, maker of swill and swill-lite
1963 -- Edith Piaf, singer, songwriter and actress
1964 -- Eddie Cantor, singer, songwriter, dancer, and actor
1973 -- Ludwig von Mises, economist and sociologist, a quack and a hack
1985 -- Yul Brynner, actor, no good rooskie
1985 -- Orson Welles, actor, director, producer, and screenwriter
2010 -- Joan Sutherland, soprano and actress

Holidays, Holy Days, Festivals, Feast Days and such:
World Mental Health Day
World Homeless Day

So, for music we gots:
Giuseppi Verdi
Ivory Joe Hunter
Harry
edison
Thelonius Monk
Louis Gottlieb
Oscar Brown
John Prine
David Lee Roth
Tanya Tucker
Mya
Jack Daniel
Edith Piaf
Eddy Cantor
Joan Sutherland

Giuseppi Verdi (Look, Ma, kultchure)

Ivory Joe Hunter

Harry Edison

Thelonius Monk

Louis Gottlieb

Oscar Brown

John Prine

David Lee Roth

Tanya Tucker

Mya

Jack Daniel(s)

Edith Piaf

Eddy Cantor

Joan Sutherland (More Verdi, a twofer)