19 is the 8th smallest prime number. The sequence continues 23, 29, 31, 37…

The game of Go is played on a grid of 19 x 19 lines (though variants can be played on grids of other sizes).

The Bahá’í calendar is structured such that a year contains 19 months of 19 days each (along with the intercalary period of Ayyám-i-Há), as well as a 19-year cycle and a 361-year (19×19) supercycle.

19 is the debut album from English soul and jazz singer Adele.

19 is the seventh Mersenne prime exponent. (a Mersenne number is a positive integer that is one less than a power of two).

Renault 19, old car of Renault.

19 is a centered triangular number.

19 is the height, in feet, of the statues of Abraham Lincoln and Thomas Jefferson in their respective memorials.

“19th Nervous Breakdown” is a song by the Rolling Stones.

In golf the “19th hole” is the clubhouse bar.

The 19th President of the United States was Rutherford B. Hayes.

19 is the atomic number of Potassium.

19 is part of the name of a breakfast cereal: Product 19

19 is the minimum age that is legal to buy tobacco products in Alabama, Alaska, New Jersey, Utah, and Nassau, Suffolk, and Onondaga counties in New York.

19 Entertainment Ltd is owned by the creator / executive producer of the successful reality TV singing competition “American Idol”, Simon Fuller

19 is the minimum age to marry in the state of Nebraska.

And who could ever forget, this day, December 28, 2009, David Archuleta turns 19!

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