February is the second month of the year in the Gregorian calendar, which is used by most of the world. It has 28 days in common years and 29 days in leap years, which occur every four years. February is known for being the shortest month and is often associated with winter in the Northern Hemisphere and summer in the Southern Hemisphere. One of the most recognized holidays in February is Valentine's Day, celebrated on the 14th. This day is dedicated to expressing love and affection, often through gifts, cards, and romantic gestures. Additionally, February is also recognized as Black History Month in the United States and Canada, honoring the contributions and achievements of African Americans.