Special events and other funny days

Friday the 13th is considered an unlucky day in Western superstition. It occurs when the 13th day of the month in the Gregorian calendar falls on a Friday, which happens at least once every year but can occur up to three times in the same year. For example, 2015 had a Friday the 13th in February, March, and November; 2017 and 2020 had two Friday the 13ths each; 2021 had just one occurrence of Friday the 13th; the year 2022 will also have a single occurrence.

According to folklore historian Donald Dossey, the unlucky nature of the number "13" originated with a Norse myth about 12 gods having a dinner pa ...