May 23, 2026Discover which years have no Friday the 13th and why February starting on Sunday affects the calendar in common and leap years.

May 17, 2026Discover why Friday the 13th can happen in any month and learn about the calendar patterns behind this common superstition.

Apr 28, 2026Discover whether January 24 is a rare birthday and learn how birthdays are distributed throughout the year.

Mar 23, 2026Discover what it means to have a birthday on February 29 and how people celebrate leap year birthdays on non-leap years.

Feb 28, 2026Discover why February 29 is a rare birthday and how leap years affect celebrations.