July 21 is a date on the Gregorian calendar. In common years it is the 202nd day of the year and in leap years the 203rd day; after July 21 there are 163 days remaining in a common year. For information on how leap years change the day count see leap year, and for background on the system in general see the Gregorian calendar.
Season and astronomical context
In the Northern Hemisphere July 21 falls in mid-summer, typically associated with long daylight hours and warm weather; in the Southern Hemisphere it corresponds to mid-winter. The date can fall near the astrological sign of Cancer, depending on the system used, and is often part of the period of July heat in temperate climates.
History and public observances
Several countries and communities mark July 21 for historical reasons. Most prominently, Belgium celebrates its National Day on July 21, commemorating the inauguration of its first king in the 19th century. The date has been the setting for many political, cultural and sporting events across different years.
Notable births and persons
- Ernest Hemingway (born 1899) — acclaimed American novelist and Nobel laureate.
- Cat Stevens (born 1948) — British singer-songwriter (also known as Yusuf Islam).
- Robin Williams (born 1951) — American actor and comedian.
Observances and trivia
Beyond national holidays, July 21 is used for cultural festivals, local commemorations and anniversaries. Events tied to exploration and science sometimes fall on or around this date; for example, milestones of the Apollo 11 mission occurred across July 20–21, 1969 in different time zones. The day is also a convenient reference point in seasonal planning, school calendars and fiscal quarters in some regions.