February 12 is the 43rd day of the year in the Gregorian calendar. It is often associated with various historical events and celebrations. For example, it is the birthday of Abraham Lincoln, the 16th President of the United States, who was born in 1809. In addition to its historical significance, February 12 is also recognized as Darwin Day, celebrating the birthday of naturalist Charles Darwin, who developed the theory of evolution. This day is observed by many to promote science and education, particularly in the fields of biology and natural history.