Friday, 13th

When I was studying inclusive education ages ago, I made one part of an exam as a presentation about phobias, which is a fear that's often very strong and limiting and often tied to specific situations. My presentation also was about how to cure phobias.

Very fitting for this day today there actually is a term for people with the fear of the number 13. Such a fear is called triskaidekaphobia (from the Greek τρεισκαίδεκα, treiskaídeka = thirteen). There are actually places where there are only 12 floors of a building or they skipped the 13^th floor and the buttons on an elevator only shows floor 12 followed by 14.

There is also paraskevidekatriaphobia (from Latin parasceuē or Greek αρασκευή, parascēves = Friday), the fear of Friday, 13^th. Movies like the series of horror movies “Friday, 13th” certainly don't help with that fear.

Fun fact: The fear of long words, maybe like the two phobias mentioned above, is called hippopotomonstrosesquipedaliophobia. A made-up word from the wrong spelling of the English “hippopotamus”, the Latin “monstrum” (unusually large; monster), the Latin “sesqui” (= a foot and a half) and “pedal” from Latin “pedālis” (= the foot or part belonging to the foot). One and a half foot probably a figurative way of describing the length of the word. Actually in German the part “sesquipedalio” is spelled with 2 “p”: “sesquippedalio”. Probably a misspelling and through copy and paste people just spread it on.

Jews maybe don't understand such fears very much. Saturday is Shabbat for them, meaning their day of rest at the end of the week. They start celebrating that starting Friday evening. Also Bar Mitzvah, the Jewish coming of age ritual, is typically celebrated on the Shabbat after the boy has had his 13^th birthday. The Bat Mitzvah for girls is celebrated when they're 12 years old.

The Good Friday on the other hand is not really a good day for Christians, since it's the day of the crucifixion of Jesus. Even the economy, which could otherwise probably be called fairly rational, called several bad days “Black Friday”, either specific days of an economy crisis or stock market crash.

Thirteen by itself is often considered as not a good number. Jesus had 12 apostles. The day and the night are structured in 12 hours. The year has 12 months. So thirteen is often considered as “the devil's dozen”. Looking at it from a mathematical point of view, 13 is a prime number. Which means a whole number greater than 1 that cannot be made by multiplying other whole numbers.

These are only a few examples and possible explanations why specifically Friday, 13^th is considered to be such a bad day. Although you can find studies on the internet from insurance companies for example that show that statistically there are no more accidents (material damage or damage to persons) on a Friday, 13^th. The reason could possibly be though, because some are actually so scared of this specific day that they take that day off work and stay home, much like others who reportedly plan their holiday in such a way that they don't go on a Friday, 13^th.

I myself learned from a fairly young age that Friday, 13^th is a normal day and not necessarily something bad will happen on that day. In primary school I was part of the recorder group and once we rehearsed for a play on the supposedly bad day. The rehearsal when without anything bad happening.

When I was studying however there was something funny when one of our professors said good-bye to us on the last lesson before the exam telling us that we'll see each other again on Friday, 13^th for the exam. Cries of shock broke out in class then. Obviously we all knew somehow that the exams would be on a Friday and also that we had exams on the 13^th. But those two bad days were not in our heads together as Friday, 13^th, until the professor said his good-bye!

Fun facts:

1. Each year there is at least 1, but no more than 3 Fridays on the 13^th of a month!
2. If the year is no leap-year and February has a Friday, 13^th, so will March and November!
3. The shortest interval between 2 Friday, 13^th is exactly 4 weeks! Namely when fun fact number 1 applies with the days between February and March, since February only has 28 days.
4. The longest interval between 2 Friday, 13^th is exactly 61 days or 14 months! That's when the day is in August. Then the next bad day is only in October the following year. Or if the day is in June with the next Friday, 13^th only being in September the following year.

How is Friday, 13^th for you? Did something bad happen to you on this day? Or did actually something good happen to you on such a day? Do you think about this date or is it just a normal day like any other for you?

Happy Friday, 13^th everyone!