General fact: 12 is the number of basic hues in the color wheel (3 primary colors (red, yellow, blue), 3 secondary colors (orange, green & purple) and 6 tertiary colors).
Mathematical fact: 12 is the smallest abundant number.
Trivia: 12 is the number of ounces in a troy pound (used for precious metals).
Historical date: January 12th is the day in 1915 that the United States House of Representatives rejects a proposal to give women the right to vote.