This Is Why Buildings Don't Have a 13th Floor

Why are we afraid of the number 13? Why don't buildings have a 13th floor? Is there any proof to back up the belief that Friday the 13th brings bad luck? Or are all those superstitions?

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Sources:

[Friday the 13th]
https://pastebin.com/40haispv

[Ides of March]
https://www.vice.com/en_ca/article/xy9b5w/the-third-week-of-april-is-a-very-scary-time-for-america

[August the 8th]
https://pastebin.com/34YitNVE

[Superstitions]
https://www.medicalnewstoday.com/articles/326330.php#3
https://www.chicagobooth.edu/faculty/directory/r/jane-l-risen#biography
https://www.apa.org/pubs/journals/features/rev-0000017.pdf

[Additional Sources]
https://www.britannica.com/topic/Titanic
https://www.pbs.org/wnet/secrets/great-fire-rome-background/1446/
https://bbc.in/34hlVb7

Видео This Is Why Buildings Don't Have a 13th Floor канала Brew