Principles
There are three qualities that distinguish one year from another: whether it is a leap year or a common year, on which of four permissible days of the week the year begins, and whether it is a deficient, regular, or complete year. Mathematically, there are 24 (2×4x3) possible combinations, but only 14 of them are valid. Each of these patterns is called a keviyah (Hebrew קביעה for "a setting" or "an established thing"), and is encoded as a series of three Hebrew letters.
Read more about this topic: Hebrew Calendar
Famous quotes containing the word principles:
“Custom is our nature.... What are our natural principles but principles of custom?”
—Blaise Pascal (1623–1662)
“It is always easier to fight for one’s principles than to live up to them.”
—Alfred Adler (1870–1937)
“His principles are like the bristles of a domesticated pig, they don’t pierce through the pork.”
—Franz Grillparzer (1791–1872)