holidays
Rare Disease Day (in leap years; usually celebrated in common years on February 28)
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Rare Disease Day
Observance to raise awareness for rare diseases
Rare Disease Day is an observance held on the last day of February to raise awareness for rare diseases and improve access to treatment and medical representation for individuals with rare diseases and their families. The date is chosen because in leap years it is February 29,…Source: Wikipedia (CC BY-SA)
February 29
Day of the year
February 29 is a leap day —an intercalary date added periodically to create leap years in the Julian and Gregorian calendars. It is the 60th day of a leap year in both Julian and Gregorian calendars, and 306 days remain until the end of the leap year. It is the last day of…Source: Wikipedia (CC BY-SA)