KnowraFebruaryFebruaryFebruary is the second month of the Gregorian calendar. It has 28 days in common years and 29 in leap years.BriefConnectRoman calendar: The system of timekeeping used in ancient Rome, revised several times before the Julian calendar. February began as part of Rome’s changing calendar and inherited its distinctive short length.Leap year: A calendar year containing an extra day to keep the calendar aligned with Earth’s seasons. February receives the added day in years designated as leap years.Valentine's Day: A celebration observed on February 14, associated with romantic love and affection. It is one of the best-known annual observances fixed within February.January: The first month of the Gregorian calendar, with 31 days. It immediately precedes February and shares the boundary between calendar years and winter.Julius Caesar: Roman dictator whose calendar reform established the Julian calendar in 46 BCE. His reform regularized February’s place in a solar year and added leap days.Gregorian calendar leap-year rule: The rule making years divisible by 4 leap years, except century years not divisible by 400. This rule determines whether February has 28 or 29 days.Black History Month: An annual observance celebrating Black history and contributions, held in February in the United States and Canada. Its February timing makes the month a recurring period of historical commemoration.March: The third month of the Gregorian calendar, with 31 days. It follows February and shows the contrast between February’s short length and longer months.Julian calendar: A solar calendar introduced under Julius Caesar, with a leap day every four years. The Gregorian calendar retained February’s leap day while refining the Julian rule.Tropical year: The average interval between successive vernal equinoxes, about 365.2422 days. Its length explains why a calendar needs occasional extra days.Show all 20Linked from 5 pagesMonthBroader topic: Its variable length shows how leap days alter a month's duration.HaplologyRelated: The common pronunciation with one fewer rhotic sequence is often cited as a case of haplology.JulyCompared with: Its variable, shorter length contrasts with July’s consistent 31 days.Spelling pronunciationBroader topic: Pronouncing the first r may reflect the spelling, despite its frequent omission in speech.OctoberRelated: Its placement before March also reflects the calendar’s reorganization around the old Roman year.