Friday 13th 黑色星期五

Friday the 13th is considered an unlucky day in Western superstition.

The fear of the number 13 has been given a scientific name Triskaidekaphobia.

As for the fear of Friday the 13th is called Paraskevidekatriaphobia.

The superstition surrounding this day may have arisen in the Middle Ages.

Originating from the story of Jesus' last supper and crucifixion.

There were 13 individuals present in the Cenacle on the 13th of Nisan Maundy Thursday, the night before his death on Good Friday.

Therefore both Friday and the number 13 are being considered as unlucky.

There is at least one Friday the 13th in every calendar year.

There can be as many as three Friday the 13ths in a single calendar year.

Either in February, March and November in a common year starting on Thursday or January, April and July in a leap year starting on Sunday.

13号星期五（或黑色星期五）在西方文化中，被迷信者认为是不幸、不吉利的日子。

那些对数字13存有恐惧的人，学名为十三恐惧症者。

至于那些对黑色星期五存有恐惧的人，学名则被称为黑色星期五恐惧症者。

对这一天持有迷信观念，可能始于中世纪。

起源于耶稣最后的晚餐和受难的故事。

相传耶稣遭其门徒之一的加略人犹大出卖而遭逮捕当天即是星期五，而且加略人犹大是当天最后的晚餐中的第13位客人。

因此，星期五和数字13都被认为是不吉利的。

每年都至少有一个星期五是落在13号的。

而一年里最多可以有多达三个星期五是落在13号的。

当一月一日是在星期四时，那年的二月、三月、十一月都会有黑色星期五；如果闰年的一月一日是在星期日时，那年的一月、四月、七月也会有黑色星期五。