12 facts about the number 12

23768368 Humans have 12 pairs of ribs.

Twelve astronauts have walked on the moon. This photo shows Buzz Aldrin's moon walk. (NASA)

NASA

The Dozenal Society of America is an entire nonprofit organization dedicated to the number 12. It's even been publishing "The Duodecimal Bulletin" since 1945. (dozenal.org)

dozenal.org

Zodiac The Western and Chinese zodiacs each have 12 signs. (Thinkstock)

Thinkstock

Hong Kong Wedding In Hong Kong, at least 700 people are expected to get married, as they believe the date will bring everlasting love.(AP Photo/Kin Cheung)

AP Photo/Kin Cheung

There are 12 face cards in a deck. (Thinkstock)

Thinkstock

Alcoholics Anonymous has 12 steps, 12 traditions and 12 concepts for world service. This photo shows a regional AA center. (David Shankbone/Wikipedia)

David Shankbone/Wikipedia

The number 12 may be small, but it is one of the most divisible digits. Outside of one and itself, it also can be divided by two, three, four and six. This may be why so many things in everyday life use the number 12. There are 12 hours in the morning and night, 12 items in a dozen, 12 inches in a foot and 12 months in a year. (WTOP/Lacey Mason)

WTOP/Lacey Mason

153896789 An analogue clock has 12 hours on its face. (Thinkstock)

Thinkstock

100263709 In the Bible, Jacob had 12 sons, 12 tribes were started after Moses led his people out of Egypt and Jesus had 12 disciples. (Thinkstock)

Thinkstock

132103889 The European Union's flag has 12 stars. (Thinkstock)

Thinkstock

12-12-12 A Hurricane Sandy benefit concert on 12/12/12 will be the largest event in music history. Performers include Bruce Springsteen and the E Street Band, Paul McCartney, the Rolling Stones, the Who, Eric Clapton, Billy Joel, Kanye West, Alicia Keys and Bon Jovi. (AP)

AP