In my life the number 23 doesn't occur much. Anytime there's an historical date of import, historical figure's birth or death dates, a date made up in a book or story...I always hope the 23rd will be the date--but it seldom is.
So when the twenty-third does pop up, it sticks out in my mind. And it seems to take on unusual importance, or occurs in odd happenstance.
The most recent weird 23 event occured during my office party. The company rented out an upscale Asian-fusion restaurant--it was a blast. I got there late and there were already at least 80 people there. At the coat check, the racks were full. Cold weather snap and everyone wore coats. My coat check number, though, was 23. Out of all the numbers I could have gotten, out of all the tons of checked clothes--I still came up 23. Neat.
Thinking about how I don't notice the number 23 much led me to the internet (!) and at Wikipedia I found the following article:
And this nice piece of art:
made by Kristin J. Herrera from: http://www.kjherreradesign.com/galleryintro.html