For all the superstitious folk out there, Friday the 13th has some particularly ominous implications. You find yourself, perhaps quite irrationally, feeling afraid about what the day ahead might entail. Whether you're creeped out or simply curious, here's 5 interesting facts about this date.
A month must begin on a Sunday for it to have a Friday the 13th.
2. Little is known about why it's feared
Not much is known about where the day's notoriety originated. A lot of historians think that the superstitions that surround it came about towards the end of the 19th century. The initial documented mention can be recognised in the biography of the Italian composer Gioachino Rossini, of whom passed away on a Friday 13th. The American businessman's, Thomas Lawson's, 1907 book, Friday the Thirteenth, could've additionally emphasised the superstition. Many others perceive the myth as obtaining Biblical origins. There were 13 guests at the Last Supper on the night before Jesus' crucifixion, which occurred on a Friday.
An additional account states that this day has been given associations with misfortunes ever since 1307, when, on a Friday the 13th, a French King issued the orders to place hundreds of Knights Templar under arrest.
3. Friday the 13th Patterns Repeat in the Calendar
The way it works is that whenever a common year starts on a Thursday, the months of February, March, and November will have a Friday the 13th. This'll occur on 11 occasions in the 21st century. The pattern of February-March-November repeats in a 28-year cycle. The cycle began in 2009 in the 21st century. 6 years later, in 2015, Friday the 13th took place in February, March, and November. This'll not occur for 11 additional years until 2026 and we'll also have to wait once more for 11 years 'til 2037 in order to witness the February, March and November trilogy. It is beginning from 2043 that the pattern will repeat itself, 6 years after 2037.
4. The fear is incredibly common
Many experts have suggested that friggatriskaidekaphobia is experienced by millions of individuals and have calculated that particular businesses, airlines especially, suffer from major losses on Friday the 13th.
5. It Can Occur Even During Leap Years
In a leap year, three Friday the 13th's can occur. If a leap years January 1st falls on a Sunday, the months January, April, and July will each have a Friday the 13th. This will occur four times in the 21st century in 2012, 2040, 2068, and 2096.
This occurred four times in the 20th century, in 1928, 1956, and 1984.