There are different theories on how Friday the 13th came to be and as far as I can find out it may be based largely to The Last Supper.  Judas {the apostle who betrayed Jesus} was the 13th person to arrive at the last supper making 13 an unlucky number on any day of the week; then add in the fact that Jesus died on a Friday, and Friday the 13th most likely gets its bad rap. In fact, as the superstition goes, if you sit 13 at a dinner table, one will die within the year!  OMG

In 2012, we will see three Friday the 13th's (the others fall in April and July), the maximum number that can occur in one calendar year.

Numerologists consider 12 a “complete” number: 12 months complete a year, 12 signs complete the zodiac,  12 inches complete a foot, twelve gods of Olympus, twelve tribes of Israel, twelve Apostles of Jesus, 12 beers in a twelve-pack, etc.

No wonder "13" is such an oddity.  Perhaps that's why we have a "bakers dozen?"

Let's take a look at some interesting facts about "luck."

  • Most buildings leave out the 13th floor, lots of planes often lack a 13th row and some hotels eliminate a Room 13? In Florence, the house between 12 and 14 is actually addressed as 12 and a half.
  • There’s no proof that natural disasters are more likely on Friday the 13th, but Australia’s biggest wildfire, Florida’s especially costly Hurricane Charley and Kansas’s “Great Flood of 1951” all occurred on Friday the 13th.
  • Some of our nation’s most famous 20th-century luminaries feared the day. Henry Ford declined to do any business, and Franklin Delano Roosevelt avoided travel. Rumor has it that FDR refused to roam not only on Friday the 13th, but also on the 13th day of every month.
  • The belief of tossing a pinch of salt over your left shoulder to get rid of bad luck come from the legend that the devil is always standing behind you, and throwing salt in his eye distracts him from causing trouble. Nowadays, most people only do this after spilling salt, which is thought to be bad luck because salt was an expensive commodity long ago and folklore linked it to unlucky omens in order to prevent wasteful behavior.
  • It’s a near-universal sign of wishing for something, but there are many theories about its origin. One is that when Christianity was illegal, crossing fingers was a secret way for Christians to recognize each other. Another is that during the Hundred Years' War, an archer would cross his fingers to pray for luck, before drawing back his longbow with those same fingers.
  • Friggatriskaidekaphobia is the "Fear of Friday the 13th"
  • In Spanish-speaking countries, instead of Friday, Tuesday the 13th (martes trece) is considered a day of bad luck.[11] The Greeks also consider Tuesday (and especially the 13th) to be an unlucky day.