February 21 is the 52nd day of the year in the Gregorian calendar. It is often associated with various observances and events, including International Mother Language Day, which promotes linguistic and cultural diversity. In history, February 21 has seen significant events, such as the founding of The New Yorker magazine in 1925. Additionally, notable birthdays include Nina Simone, an influential American singer and civil rights activist, born in 1933, and Kelsey Grammer, an American actor known for his role in the television series Frasier, born in 1955.