The rarest birth in the world is on February 29th, also known as Leap Day. This is because it only occurs every four years, resulting in a significantly lower chance of being born on this date compared to any other day of the year.
While some sources indicate that December 25th (Christmas Day) might be considered rare due to fewer births on this day, it is important to note that the rarity of February 29th is due to its unique occurrence every four years.
