February 21st is the 52nd day of the year in the Gregorian calendar. There are 313 days remaining until the end of the year (314 in leap years). This date is slightly more likely to fall on a Tuesday, Thursday or Sunday (58 in 400 years each) than on Friday or Saturday (57), and slightly less likely to occur on a Monday or Wednesday (56).
1437 – James I of Scotland is assassinated.
1613 – Mikhail I is unanimously elected Tsar by a national assembly, beginning the Romanov dynasty of Imperial Russia.
1848 – Karl Marx and Friedrich Engels publish The Communist Manifesto.
1918 – The last Carolina parakeet dies in captivity at the Cincinnati Zoo.
1965 – Malcolm X is assassinated at the Audubon Ballroom in New York City.
Game of Thrones Actress Sophie Turner turns 22
Comedian Jordan Peele turns 39
Actor Joe Alwyn turns 27
High School Musical Actor Corbin Bleu turns 29
Actress Jennifer Love Hewitt turns 39