Tuesday the 13th is considered an unlucky day in Greece and other Greek-speaking countries, such as Cyprus.

But why is it considered unlucky?

• The number 13: It is considered by many to be an unlucky number, a superstition linked to various historical and religious traditions.
• Tuesday: In folk tradition, it is considered an unlucky day, mainly because it is associated with the fall of Constantinople to the Ottomans on Tuesday, May 29, 1453.
• The combination: In Greek tradition, Tuesday and the number 13 have been linked and established as a symbol of bad luck.

In fact, in other countries, such as the U.S., the equivalent day is Friday the 13th.

Is it really unlucky? No! This is a folk belief, with no scientific evidence to prove that this particular day brings bad luck.

And here’s a fun fact: Today, Tuesday, October 13, 2026, is exactly a Tuesday the 13th!